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		<h1>Bộ 10 đề thi giữa học kỳ 2 môn Toán lớp 4</h1>
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			Bộ 10 đề thi giữa học kỳ 2 môn Toán lớp 4 gồm có hai phần: Trắc nghiệm và tự luận, có đáp án và hướng dẫn chấm điểm kèm theo. Mời các bạn cùng tham khảo.
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			<div style="text-align: center;"><strong><span style="color: rgb(0, 0, 0);">Bộ 8 đề thi giữa học kỳ 2 môn Toán lớp 4</span></strong><br style="color: rgb(0, 0, 0);" /><span style="color:rgb(0, 0, 0);"><strong>ĐỀ 1</strong></span></div><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 1.</span>&nbsp;Nối mỗi phân số ở cột trái với phân số bàng nó ỏ cột phải :</span></p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="180" src="https://sachgiai.com/uploads/news/2019_02/de-1-giua-ki-2-cau-1.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="303" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 2.</span>&nbsp;Khoanh vào chữ đặt trước câu trả lời đúng :</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">a) Giá trị của chữ số 5 trong số 50734 là :</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">A.5 &nbsp;&nbsp;&nbsp; B. 50 &nbsp;&nbsp;&nbsp;C. 50734 &nbsp;&nbsp;&nbsp;D. 50000</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">b) Trong các phân số : : 2/8,12/20,22/41,15/33, phân số tối giản là :</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">A. 12/20 &nbsp;&nbsp;&nbsp; B. 22/41&nbsp;&nbsp;&nbsp; C. 15/33 &nbsp;&nbsp;&nbsp; D. không có</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">c)Số thích hợp điền váo chỗ chấm để 12/21= (….)/7 là :</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">A.12 &nbsp;&nbsp;&nbsp; B. 21 &nbsp;&nbsp;&nbsp; C. 7&nbsp;&nbsp;&nbsp; D. 4</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">d) Số thích hợp điền vào chỗ chấm để 41m<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>&nbsp;4dm<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>&nbsp;= …. Cm<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>&nbsp;:</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">A. 4104 &nbsp;&nbsp;&nbsp; B. 41040 &nbsp;&nbsp;&nbsp;C. 410400 &nbsp;&nbsp;&nbsp; D. 41400</span><br  /><span style="box-sizing: border-box; font-weight: 640;">Bài 3.</span>&nbsp;Khoanh vào chữ đặt trước hình bình hành :</p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="97" src="https://sachgiai.com/uploads/news/2019_02/de-1-giua-ki-2-cau-3.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="595" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 4.</span>&nbsp;Tính :</span></p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="107" src="https://sachgiai.com/uploads/news/2019_02/de-1-giua-ki-2-cau-4.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="102" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 5.</span>&nbsp;Tìm x :</span></p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="73" src="https://sachgiai.com/uploads/news/2019_02/de-1-giua-ki-2-cau-5.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="137" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 6.</span>&nbsp;Một hình bình hành có cạnh đáy 45 cm. Chiều cao tương ứng bằng 4/5 cạnh đáy. Tính diện tích của hình bình hành.</span></p><p style="box-sizing: border-box; color: red; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: center; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Đáp án và Hướng dẫn giải</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 1:</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">A -&gt; 3 &nbsp;&nbsp;&nbsp; B -&gt; 4 &nbsp;&nbsp;&nbsp; C -&gt; 1 &nbsp;&nbsp;&nbsp; D -&gt; 2</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 2.</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">a) D &nbsp;&nbsp;&nbsp; b) B &nbsp;&nbsp;&nbsp; c) D &nbsp;&nbsp;&nbsp;d) C</span><br  /><span style="box-sizing: border-box; font-weight: 640;">Bài 3.</span>&nbsp;A</p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 4.</span></span></p><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="101" src="https://sachgiai.com/uploads/news/2019_02/de-1-giai-giua-ki-2-cau-4.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="238" /><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 5.</span></span></p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="218" src="https://sachgiai.com/uploads/news/2019_02/de-1-giai-giua-ki-2-cau-5.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="141" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 6.</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Chiều cao của hình bình hành là : 45 x 4/5 = 36 (cm)</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Diện tích của hình bình hành đó là : 45 x 36 = 1620 (cm<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>)</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Đáp số : 1620 cm<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span></span><br  />&nbsp;</p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif; text-align: center;"><strong>ĐỀ 2</strong></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 1.</span>Tính :</span></p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="110" src="https://sachgiai.com/uploads/news/2019_02/de-2-giua-ki-2-cau-1.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="102" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 2.</span>Khoanh vào chữ đặt trước câu trả lời đúng :</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">a) Tổng của 192837 và 283719 là :</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">A.476456&nbsp;&nbsp;&nbsp; B. 466556&nbsp;&nbsp;&nbsp; C. 476556&nbsp;&nbsp;&nbsp; D. 476546</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">b) Hiệu của hai số 12937 và 9372 là :</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">A.3655 &nbsp;&nbsp;&nbsp; B. 3565 &nbsp;&nbsp;&nbsp; C. 3465&nbsp;&nbsp;&nbsp;D. 3555</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">c) Số thích hợp điền vào chỗ trống để 21m<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>&nbsp;12 cm<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>&nbsp;= … cm<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>&nbsp;:</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">A. 2112&nbsp;&nbsp;&nbsp; B. 21012&nbsp;&nbsp;&nbsp;C. 210012&nbsp;&nbsp;&nbsp; D. 210120</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">d) Phân số 4/9 bằng phân số :</span></p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="52" src="https://sachgiai.com/uploads/news/2019_02/de-2-giua-ki-2-cau-2.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="524" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 3.</span>Điền dấu &gt;;=;&lt; thích hợp vào ô trống :</span></p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="144" src="https://sachgiai.com/uploads/news/2019_02/de-2-giua-ki-2-cau-3.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="90" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 4.</span>Đúng ghi Đ, sai ghi S vào ô trống :</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">a) 4 phút 15 giây = 260 giây ▭</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">b) 3 tấn 43 kg = 3043 kg ▭</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 5.</span>Năm năm trước mẹ hơn con 25 tuổi. Hiện nay tổng số của hai mẹ con là 43 tuổi. Hỏi hiện nay mỗi người bao nhiêu tuổi ?</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 6.</span>Kho thóc thứ nhất có 415 tấn thóc. Số thóc ở kho thứ hai bằng 3/5 số thóc kho thứ nhất. Tính tổng số Thóc của cả hai kho.</span></p><p style="box-sizing: border-box; color: red; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: center; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Đáp án và Hướng dẫn giải</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 1:</span></span></p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="95" src="https://sachgiai.com/uploads/news/2019_02/de-2-giai-giua-ki-2-cau-1.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="465" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 2.</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">a) C &nbsp;&nbsp;&nbsp;b) B&nbsp;&nbsp;&nbsp; c) C&nbsp;&nbsp;&nbsp; d) B</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 3.</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">a) &lt; &nbsp;&nbsp;&nbsp;b) &gt;&nbsp;&nbsp;&nbsp;c) = &nbsp;&nbsp;&nbsp; d) &lt;</span><br  /><span style="font-weight: 640;">Bài 4.</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">a) S &nbsp;&nbsp;&nbsp;b) Đ</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 5.</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Vì hiệu số tuổi của hai mẹ con không thay đổi theo thời gian nên hiện nay mẹ vẫn hơn con 25 tuổi. Ta có sơ đồ :</span></p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="107" src="https://sachgiai.com/uploads/news/2019_02/de-2-giai-giua-ki-2-cau-5.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="480" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Tuổi con là : ( 43 – 25 ) : 2 = 9 (tuổi)</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Tuổi mẹ là : 9 + 25 = 34 (tuổi)</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Đáp số : Con 9 tuổi; Mẹ 34 tuổi.</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 6.</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Số thóc của kho thứ hai là : 415 x 3/5= 249 (tấn)</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Tổng số thóc của cả hai kho có là : 415 = 249 = 664 (tấn)</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Đáp số : 466 tấn .</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif; text-align: center;"><strong>ĐỀ 3</strong></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="box-sizing: border-box; font-weight: 640;">Bài 1.</span>&nbsp;Tính :</p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="110" src="https://sachgiai.com/uploads/news/2019_02/de-3-giua-ki-2-cau-1.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="94" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 2.</span>&nbsp;Điền dấu &gt;;=;&lt; thích hợp vào chỗ chấm :</span></p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="148" src="https://sachgiai.com/uploads/news/2019_02/de-3-giua-ki-2-cau-2.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="98" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 3.</span>&nbsp;Khoanh vào chữ đặt trước câu trả lời đúng :</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">a) Tổng của 291807 và 475869 là :</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">A.757576 &nbsp;&nbsp;&nbsp;B. 767676&nbsp;&nbsp;&nbsp; C. 757676&nbsp;&nbsp;&nbsp; D. 767576</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">b) Hiệu của 516273 và 394857 là :</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">A.122416 &nbsp;&nbsp;&nbsp; B. 767676&nbsp;&nbsp;&nbsp; C. 757676 &nbsp;&nbsp;&nbsp; D. 767576</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">c) Số thích hợp viết vào chỗ chấm để 25m<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>&nbsp;7 dm<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>&nbsp;= …… cm<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>&nbsp;là :</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">A. 2570 &nbsp;&nbsp;&nbsp;B. 25700 &nbsp;&nbsp;&nbsp; C. 250700 &nbsp;&nbsp;&nbsp;D. 25070</span><br  />d) Phân số 5/6 lớn hơn phân số :</p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">A. 6/7 &nbsp;&nbsp;&nbsp; B. 6/6 &nbsp;&nbsp;&nbsp; C. 5/4&nbsp;&nbsp;&nbsp;D. 4/5</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 4.</span>&nbsp;Đúng ghi Đ, sai ghi S vào ô trống :</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">a) 3 giờ 18 phút = 188 phút ▭</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">b) 5 tạ 15 kg = 515 kg ▭</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 5.</span>&nbsp;Cho hình bình hành ABCD có M và N là trung điểm của AB và CD. Biết DN = 18 cm, AH = 22 cm (như hình vẽ ):</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Tính tổng diện tích của các hình bình hành có trong hình vẽ :</span></p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="148" src="https://sachgiai.com/uploads/news/2019_02/ca-5-giua-ki-2-de-3.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="303" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 6.</span>&nbsp;Lớp 4A có 45 học sinh, số học sinh nam bằng 2/5 học sinh cả lớp.</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Hỏi lớp 4A có bao nhiêu học sinh nữ ?</span></p><p style="box-sizing: border-box; color: red; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: center; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Đáp án và Hướng dẫn giải</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 1:</span></span></p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="95" src="https://sachgiai.com/uploads/news/2019_02/de-2-giai-giua-ki-2-cau-1_1.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="465" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 2.</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">a) &gt; &nbsp;&nbsp;&nbsp; b) = &nbsp;&nbsp;&nbsp; c) &lt; &nbsp;&nbsp;&nbsp;d) &gt;</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 3.</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">a) B&nbsp;&nbsp;&nbsp;b) D &nbsp;&nbsp;&nbsp; c) C &nbsp;&nbsp;&nbsp;d) D</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 4.</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">a) S &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; b) Đ</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 5.</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">(có nhiều cách giải)</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Hình bên có tất cả 3 hình nình hành gồm AMND, MBCN và ABCD</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Vì M và N là trung điểm của AB và CD nên AM = MB = DN = Nc = 18 cm</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Diện tích hình bình hành AMND là : 22 x 18 = 369 (cm<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>)</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Tổng diện tích các hình bình hành có trong hình vẽ chính bằng tổng diện tích của 4 hình bình hành AMND là : 396 x 4 = 1584 cm<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Đáp số : 1584 cm<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 6.</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Số học sinh nam của lớp 4A là : 45 x 2/5 = 18 (học sinh)</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Số học sinh nữ của lớp 4A là : 45 – 18 = 27 (học sinh)</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Đáp số 27 học sinh nữ.</span><br  />&nbsp;</p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif; text-align: center;"><strong>ĐỀ 4</strong></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 1.</span>&nbsp;Khoanh vào chữ đặt trước câu trả lời đúng :</span></p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="190" src="https://sachgiai.com/uploads/news/2019_02/de-4-giua-ki-2-cau-1_1.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="380" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">d) Số thích hợp điền vào chỗ chấm 19 m<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>&nbsp;9 cm<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>&nbsp;= ….. cm<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>&nbsp;là :</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">A. 1909&nbsp;&nbsp;&nbsp; B. 199&nbsp;&nbsp;&nbsp; C. 19009 &nbsp;&nbsp;&nbsp;D. 190009</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 2.</span>&nbsp;Tính :</span></p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="116" src="https://sachgiai.com/uploads/news/2019_02/de-4-giua-ki-2-cau-2.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="128" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 3.</span>&nbsp;Đúng ghi Đ, sai ghi S vào ô trống :</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">a) 4 giờ 40 phút = 240 phút ▭</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">b) 10 phút 10 giây = 610 giây ▭</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">c) 5 m<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>&nbsp;15 cm<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>&nbsp;= 5015 cm<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>&nbsp;▭</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">d) 4 tấn 6 kg = 4006 kg ▭</span><br  /><span style="box-sizing: border-box; font-weight: 640;">Bài 4.</span>&nbsp;Cho hình bình hành ABCD và hình thoi BMNC liền nhau như hình vẽ. Biết cạnh DC = 4 cm, AD = 3 cm, diện tích hình bình hành ABCD là 8 cm<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>. Hãy tính diện tích hình thoi BMNC.</p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="162" src="https://sachgiai.com/uploads/news/2019_02/de-4-giua-ki-2-cau-4.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="287" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 5.</span>&nbsp;Tìm x :</span></p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="70" src="https://sachgiai.com/uploads/news/2019_02/de-4-giua-ki-2-cau-5.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="114" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 6.</span>&nbsp;Buổi sáng bác Hà bán được 4/6 cuộn vải trắng và 3/4 cuộn vải hoa. Hỏi bác Hà đã bán được tất cả bao</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Nhiêu mét vải. Biết mỗi cuộn vải dài 60m).</span></p><p style="box-sizing: border-box; color: red; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: center; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Đáp án và Hướng dẫn giải</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 1:</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">a) C &nbsp;&nbsp;&nbsp; b) D&nbsp;&nbsp;&nbsp; c) b &nbsp;&nbsp;&nbsp; d) D</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 2.</span></span></p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="170" src="https://sachgiai.com/uploads/news/2019_02/de-4-giai-giua-ki-2-cau-2.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="497" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 3.</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">a) S &nbsp;&nbsp;&nbsp; b) Đ&nbsp;&nbsp;&nbsp; c) S &nbsp;&nbsp;&nbsp;d) Đ</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 4.</span></span><br  />Vì hình ABCD là hình bình hành nên cạnh AD = BC = 3cm. Vì hình BMNC là hình thoi nên có các cạnh bằng nhau, do đó ta có :</p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">BC = BM = MN = 3 cm</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Chiều cao tương ứng cạnh DC của hình bình hành ABCD là :</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">8 : 4 = 2 (cm)</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Chiều cao tương ứng cạnh DC cũng là chiều cao tương ứng cạnh NC do đó diện tích hình thoi BMNC là :</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">3 x 2 = 6 (cm<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>)</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Đáp số : 6 cm<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 5.</span></span></p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" src="https://vietjack.com/de-kiem-tra-toan-lop-4/images/de-4-giai-giua-ki-2-cau-5.PNG" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 6.</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Số mét vải trắng bác Hà bán được là :&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;60 x 4/5= 48 (m)</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;">Số mét vải hoa bác Hà bán được là :&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 60 x 3/4= 45 (m)</p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;">Tổng số mét vải bác Hà bán được là :&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;48 + 45 = 93 (m)</p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;">Đáp số : 93 m vải<br  />&nbsp;</p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif; text-align: center;"><strong>ĐỀ 5</strong></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 1.</span>&nbsp;Khoanh vào chữ đặt trước câu trả lời đúng :</span></p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="193" src="https://sachgiai.com/uploads/news/2019_02/de-5-giua-ki-2-cau-1.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="461" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">d) Số thích hợp viết vào chỗ chấm 4 tấn 14 kg = ….. kg là :</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">A. 414 &nbsp;&nbsp;&nbsp; B. 4014&nbsp;&nbsp;&nbsp; C. 4140 &nbsp;&nbsp;&nbsp; D. 41400</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 2.</span>&nbsp;Tính :</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 3.</span>&nbsp;Điền dấu &gt;;=;&lt; thích hợp vào ô trống :</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">a) 3 giờ 3 phút ▭ 300 phút</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">b) 7 phút 30 giây ▭ 450 giây</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">c) 6 m<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>&nbsp;7 dm<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>&nbsp;▭ 607 dm<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">d) 4 tấn 8 tạ ▭ 4080 kg</span><br  /><span style="box-sizing: border-box; font-weight: 640;">Bài 4.</span>&nbsp;Một hình chữ nhật có chu vi 32cm, chiều dài hơn chiều rộng 4 cm. Một hình thoi có cạnh bằng chiều rộng hình chữ nhật trên. Hỏi chu ci hình thoi là bao nhiêu cm ?</p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 5.</span>&nbsp;Tìm y :</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 6.</span>&nbsp;Bác Hùng đi từ nhà lên tỉnh bằng xe đạp. Trong 1 giờ đầu bác đi được 3/5 quãng đường thì dừng lại nghỉ .</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Hỏi bác Hùng còn phải đi tiếp bao nhiêu km nữa để đến tỉnh.Biết đi từ quãng đường từ nhà bác lên tỉnh dài 20 km.</span></p><p style="box-sizing: border-box; color: red; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: center; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Đáp án và Hướng dẫn giải</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 1:</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">a) D &nbsp;&nbsp;&nbsp; b) B &nbsp;&nbsp;&nbsp; c) D &nbsp;&nbsp;&nbsp; d) B</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 2.</span></span></p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="165" src="https://sachgiai.com/uploads/news/2019_02/de-5-giai-giua-ki-2-cau-2.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="269" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 3.</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">a) &lt;&nbsp;&nbsp;&nbsp; b) = &nbsp;&nbsp;&nbsp; c) =&nbsp;&nbsp;&nbsp; d) &gt;</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 4.</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Nửa chu vi hình chữ nhật là : 32 : 2 = 16 (cm)</span><br  />Chiều rộng hình chữ nhật là : (16 – 4 ) : 2 = 6 (cm)</p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Vì cạnh hình thoi bằng chiều rộng hình chữ nhật nên cạnh hình thoi là 6 cm. Chu vi hình thoi là : 6 x 4 = 24 (cm)</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Đáp số : 24 cm</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 5.</span></span></p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="273" src="https://sachgiai.com/uploads/news/2019_02/de-5-giai-giua-ki-2-cau-5.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="173" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 6.</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Phân số chỉ số phần quãng đường bác Hùng còn phải đi tiếp là :</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">1-3/5=2/5 (quãng đường)</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Quãng đường bác Hùng còn phải đi tiếp đến tỉnh là :</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">20 x 2/5= 8 (km)</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Đáp số : 8 km</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif; text-align: center;"><strong>ĐỀ 6</strong></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 1.</span>&nbsp;Nối hai phân số bằng nhau với nhau :</span></p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="264" src="https://sachgiai.com/uploads/news/2019_02/cau-1-giua-ki-2-de-6.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="410" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 2.</span>&nbsp;Viết vào chỗ chấm cho thích hợp :</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Trong hình bình hành ABCD có :</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Cạnh AB dài ….. cm</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Cạnh AD dài …. Cm</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Cạnh AB song song với cạnh …..</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Cạnh AD song song với cạnh ……..</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 3.</span>&nbsp;Khoanh vào chữ đặt trước câu trả lời đúng :</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">a) Chữ số 1 trong số 241356 có giá trị :</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">A. 1 &nbsp;&nbsp;&nbsp; B. 1356&nbsp;&nbsp;&nbsp;C. 1000&nbsp;&nbsp;&nbsp;D. 10000</span></p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="146" src="https://sachgiai.com/uploads/news/2019_02/de-6-giua-ki-2-cau-3.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="405" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">d) Số thích hợp viết vào chỗ chấm để 25m<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>&nbsp;7 cm<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>&nbsp;= …. cm<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>&nbsp;là :</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">A. 257&nbsp;&nbsp;&nbsp; B. 2507 &nbsp;&nbsp;&nbsp;C. 25007 &nbsp;&nbsp;&nbsp; C. 250007</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 4.</span>&nbsp;Tính :</span></p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="163" src="https://sachgiai.com/uploads/news/2019_02/de-6-giua-ki-2-cau-4.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="114" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 5.</span>&nbsp;Tìm x :</span></p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="76" src="https://sachgiai.com/uploads/news/2019_02/de-6-giua-ki-2-cau-5.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="159" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 6.</span>&nbsp;Một mảnh đất hình chữ nhật có chiều dài là 50m, chiều rộng bằng 4/5 chiều dài.</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Tính chu vi mảnh đất đó</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Tính diện tích mảnh đất đó.</span></p><p style="box-sizing: border-box; color: red; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: center; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Đáp án và Hướng dẫn giải</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 1:</span></span></p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="269" src="https://sachgiai.com/uploads/news/2019_02/de-6-giai-giua-ki-2-cau-1.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="404" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 2.</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">a) Cạnh AB dài 4 cm</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">b) Cạnh AD dài 3 cm</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">c) Cạnh AB song song với cạnh DC</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">d) Cạnh AD song song với cạnh BC</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 3.</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">a) C &nbsp;&nbsp;&nbsp; b) B&nbsp;&nbsp;&nbsp;c) C &nbsp;&nbsp;&nbsp;d) D</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 4.</span></span></p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="105" src="https://sachgiai.com/uploads/news/2019_02/de-6-giai-giua-ki-2-cau-4.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="236" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 5.</span></span></p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="76" src="https://sachgiai.com/uploads/news/2019_02/de-6-giua-ki-2-cau-5_1.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="159" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 6.</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Chiều rộng mảnh đất là : 50 x 4/5 = 40(m)</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">a) Chu vi mảnh đất là : ( 50 + 40 ) x 2 = 180 (m)</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">b) Diện tích mảnh đất là : 50 x 40 = 2000 (m<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>)</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color: rgb(0, 0, 0);"><span style="font-size: 15px;">Đáp số : a) Chu vi 180m;Diện tích 2000m2</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; font-family: &#039;Open Sans&#039;, Arial, sans-serif; text-align: center;"><strong>ĐỀ 7</strong></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 1.</span>&nbsp;Nối hai phân số bằng nhau :</span></p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="252" src="https://sachgiai.com/uploads/news/2019_02/cau-1-giua-ki-2-de-7.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="368" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 2.</span>&nbsp;Khoanh vào chữ đặt trước câu trả lời đúng :</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">a) Tổng của 183645 và 374926 là :</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">A. 558471&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; B. 548571 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; C. 558571 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; D. 558561</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">b) Hiệu của 728190 và 536271 là :</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">A. 192919&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; B. 191919 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; C. 192929 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D. 291919</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">c) Số thích hợp vào chỗ chấm để 10 m<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>&nbsp;12 cm<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>&nbsp;= ….. cm<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>&nbsp;là :</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">A. 1012 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; B. 10012 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; C. 100120 &nbsp;&nbsp;&nbsp; D. 100012</span></p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="83" src="https://sachgiai.com/uploads/news/2019_02/de-7-giua-ki-2-cau-2.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="413" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 3.</span>&nbsp;Điền dấu &gt;;=;&lt; thích hợp vào chỗ chấm :</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;"><img alt="" height="165" src="https://sachgiai.com/uploads/news/2019_02/de-7-giua-ki-2-cau-3.png" width="105" /><br  />Bài 4.</span>&nbsp;Tính :</span></p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" src="https://vietjack.com/de-kiem-tra-toan-lop-4/images/de-7-giua-ki-2-cau-4.PNG" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 5.</span>&nbsp;Một thửa ruộng hình chữ nhật có chu vi là 72m, chiều rộng kém chiều dài 18m. Em hãy tính diện tích thửa ruộng đó.</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 6.</span>&nbsp;Tổng của số thứ nhất và số thứ hai là 47, số thứ nhất kém số thứ hai 17 đơn vị. Số thứ ba bằng 3/4</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">số thứ hai. Tím số thứ ba.</span></p><p style="box-sizing: border-box; color: red; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: center; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Đáp án và Hướng dẫn giải</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 1:</span></span></p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="278" src="https://sachgiai.com/uploads/news/2019_02/de-7-giai-giua-ki-2-cau-1.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="484" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 2.</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">a) C &nbsp;&nbsp;&nbsp;b) B &nbsp;&nbsp;&nbsp; c) D &nbsp;&nbsp;&nbsp;d) C</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 3.</span></span></p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="145" src="https://sachgiai.com/uploads/news/2019_02/de-7-giai-giua-ki-2-cau-3.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="98" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 4.</span></span></p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="112" src="https://sachgiai.com/uploads/news/2019_02/de-7-giai-giua-ki-2-cau-4.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="426" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 5.</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Nửa chu vi thửa ruộng đó là : 72 : 2 = 36 (m)</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Chiều dài thửa ruộng là : ( 36 + 18 ) : 2 = 27 (cm)</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Chiều rộng thửa ruộng là : 27 – 18 = 9 (m)</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Diện tích thửa ruộng là : 27 x 9 = 243 (m<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>)</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Đáp số : 243 m<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 6.</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;">Số thứ hai là : (47 + 17 ) : 2 = 32</p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;">Số thứ ba là : 32 x 3/4 = 24</p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif; text-align: center;"><strong>ĐỀ 8</strong></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 1.</span>&nbsp;Khoanh vào chữ đặt trước câu trả lời đúng :</span></p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="195" src="https://sachgiai.com/uploads/news/2019_02/de-8-giua-ki-2-cau-1.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="376" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 2.</span>&nbsp;Tính :</span></p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="111" src="https://sachgiai.com/uploads/news/2019_02/de-8-giua-ki-2-cau-2.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="112" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 3.</span>&nbsp;Viết vào chỗ chấm cho thích hợp :</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">a) 3 giờ 15 phút = …….. phút</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">b) 15 phút 20 giây = …….. giây</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">c) 90 m<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>&nbsp;9dm<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>&nbsp;= ……. Cm<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">d) 2 tấn 18 yến = ……. Kg</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 4.</span>&nbsp;Tìm x :</span></p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="75" src="https://sachgiai.com/uploads/news/2019_02/de-8-giua-ki-2-cau-4.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="116" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 5.</span>&nbsp;Khoanh vào chữ đặt trước câu trả lời đúng dưới đây :</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Trong các hình vẽ dưới dây ;</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Hình A là hình chữ nhật</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Hình B là hình thang</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Hình C là hình vuông</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Hình C là hình thoi</span></p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="108" src="https://sachgiai.com/uploads/news/2019_02/de-8-giua-ki-2-cau-5.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="397" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 6.</span>&nbsp;Cô Hiền được cửa hàng giao bán một số mét vải hoa. Buổi sáng cô bán được 3/5 số mét vải hoa, buổi chiều cô bán được 55m vải hoa nữa .</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">Cuối ngày cô tính số mét vải còn lại đúng bằng 1/8 số mét vải cô được giao bán. Hỏi cô Hiền được giao bán bao nhiêu mét vải .</span></p><p style="box-sizing: border-box; color: red; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: center; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Đáp án và Hướng dẫn giải</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 1:</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">a) D &nbsp;&nbsp;&nbsp; b) C &nbsp;&nbsp;&nbsp;c) C &nbsp;&nbsp;&nbsp; d) D</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 2.</span></span></p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="113" src="https://sachgiai.com/uploads/news/2019_02/de-8-giai-giua-ki-2-cau-2.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="418" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 3.</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">a) 3 giờ 15 phút = 195 phút</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">b) 15 phút 20 giây = 920 giây</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">c) 90m<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>&nbsp;9 dm<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>&nbsp;= 900900 cm<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);">d) 2 tấn 18 yến = 2180 kg</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 4.</span></span></p><span style="color:rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="218" src="https://sachgiai.com/uploads/news/2019_02/de-8-giai-giua-ki-2-cau-4.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="176" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 5.&nbsp;</span>C</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color:rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 6.<br  /><img alt="" height="101" src="https://sachgiai.com/uploads/news/2019_02/de-8-giai-giua-ki-2-cau-6.png" width="436" /></span></span><br  />&nbsp;</p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif; text-align: center;"><span style="box-sizing: border-box; font-weight: 640;">ĐỀ 9</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="box-sizing: border-box; font-weight: 640;">Bài 1.</span>&nbsp;Đúng ghi Đ, sai ghi S vào chỗ chấm :</p><span style="color: rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="149" src="https://sachgiai.com/uploads/news/2019_02/de-9-giua-ki-2-cau-1.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="124" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="box-sizing: border-box; font-weight: 640;">Bài 2.</span>&nbsp;Tính :</p><span style="color: rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="143" src="https://sachgiai.com/uploads/news/2019_02/de-9-giua-ki-2-cau-2.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="119" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="box-sizing: border-box; font-weight: 640;">Bài 3.</span>&nbsp;Khoanh vào chữ đặt trước câu trả lời đúng :</p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;">a) Chữ số 5 trong số 156834 có giá trị là :</p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;">A.5&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; B. 56834&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; C. 5000&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D. 50000</p><span style="color: rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="67" src="https://sachgiai.com/uploads/news/2019_02/de-9-giua-ki-2-cau-3.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="500" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;">c) Chữ số thích hợp viết vào chỗ để 18m<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>&nbsp;8 dm<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>&nbsp;= ….. cm<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>&nbsp;:</p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;">A. 18080&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; B. 180800&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C. 18800 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D. 188000<br  />d) 1/4 của 40 kg là :</p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;">A. 10&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; B. 10 kg &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; C. 30 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; D. 30kg</p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="box-sizing: border-box; font-weight: 640;">Bài 4.</span>&nbsp;Viết vào chỗ chấm :</p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;">a) 3 tấn 30 kg = …… kg</p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;">b) 5 giờ 25 phút = ……. Phút</p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;">c) 17m<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>&nbsp;5 dm<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>&nbsp;= ….. cm<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;">d) 28 m<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>&nbsp;80 cm<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>&nbsp;= … cm<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="box-sizing: border-box; font-weight: 640;">Bài 5.</span>&nbsp;Đội văn nghệ của Trường tiểu học Kim Đồng có 24 bạn nữ và một số bạn nam. Số bạn nam bằng 2/3 số bạn nữ. Hỏi đội văn nghệ của trường có tất cả bao nhiêu bạn.</p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="box-sizing: border-box; font-weight: 640;">Bài 6.</span>&nbsp;Tổng của hai phân số là 9/10 , hiệu của hai phân số là 1/9 . Tìm hai phân số đó .</p><p style="box-sizing: border-box; color: red; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: center; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color: rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Đáp án và Hướng dẫn giải</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="box-sizing: border-box; font-weight: 640;">Bài 1:</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;">a) Đ&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b) S &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; c) Đ&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;d) Đ</p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="box-sizing: border-box; font-weight: 640;">Bài 2.</span></p><span style="color: rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="140" src="https://sachgiai.com/uploads/news/2019_02/de-9-giai-giua-ki-2-cau-2.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="317" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="box-sizing: border-box; font-weight: 640;">Bài 3.</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;">a) D&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b) C&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c) B&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;d) B</p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="box-sizing: border-box; font-weight: 640;">Bài 4.</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;">a) 3 tấn 30 kg = 3030 kg</p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;">b) 5 giờ 25 phút = 325 phút</p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;">c) 17m<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>&nbsp;5 dm<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>&nbsp;= 170500 cm<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;">d) 28m<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>&nbsp;80 cm<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>&nbsp;= 280080 cm<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="box-sizing: border-box; font-weight: 640;">Bài 5.</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;">Số bạn nam của đội văn nghệ có là : 24 x 2/3 = 16 (bạn)</p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;">Số bạn của đội văn nghệ có là : 24 + 16 = 40 (bạn)</p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;">Đáp số : 40 bạn</p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="box-sizing: border-box; font-weight: 640;">Bài 6.</span></p><span style="color: rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="78" src="https://sachgiai.com/uploads/news/2019_02/de-9-giai-giua-ki-2-cau-6.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="295" /></span><div style="text-align: center;"><strong>ĐỀ 10</strong></div><div><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="box-sizing: border-box; font-weight: 640;">Bài 1.</span>&nbsp;Đúng ghi Đ, sai ghi S vào ô trống :</p><span style="color: rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="153" src="https://sachgiai.com/uploads/news/2019_02/de-10-giua-ki-2-cau-1.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="134" /></span><div class="ads_ads ads_1" style="box-sizing: border-box; position: relative; padding: 15px 0px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;"><span style="color: rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Bài 2.</span>&nbsp;Tính :</span></div><span style="color: rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="142" src="https://sachgiai.com/uploads/news/2019_02/de-10-giua-ki-2-cau-2.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="118" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="box-sizing: border-box; font-weight: 640;">Bài 3.</span>&nbsp;Khoanh vào chữ số đặt trước câu trả lời đúng :</p><span style="color: rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="198" src="https://sachgiai.com/uploads/news/2019_02/de-10-giua-ki-2-cau-3.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="500" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="box-sizing: border-box; font-weight: 640;">Bài 4.</span>&nbsp;Cho hình bình hành có chu vi bằng nhau (cùng bằng 12 cm) một hình có số đo một cạnh là 3 cm, một hình có số đo một cạnh là 4 cm. Em hãy vẽ và ghi tên hình thoi vào một trong hai hình đó.</p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="box-sizing: border-box; font-weight: 640;">Bài 5.</span>&nbsp;Một tấm kính hình chữ nhật có chu vi là 3 m, chiều rộng 3 dm. Tính diện tích tấm kính đó ra dm vuông ?</p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="box-sizing: border-box; font-weight: 640;">Bài 6.</span>&nbsp;Thửa ruộng nhà ông Hùng rộng 1500m<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>. Buổi sáng ông Hùng cày được 2/5 diện tích thửa ruộng. Buổi chiều ông Hùng cày tiếp và còn lại 1/10 diện tích thửa ruộng. Hỏi buổi chiều ông Hùng cày được bao nhiêu mét vuông thửa ruộng đó ?</p><p style="box-sizing: border-box; color: red; line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: center; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="color: rgb(0, 0, 0);"><span style="box-sizing: border-box; font-weight: 640;">Đáp án và Hướng dẫn giải</span></span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="box-sizing: border-box; font-weight: 640;">Bài 1:</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;">a) S&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b) S&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; c) Đ &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;d) S</p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="box-sizing: border-box; font-weight: 640;">Bài 2.</span></p><span style="color: rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="143" src="https://sachgiai.com/uploads/news/2019_02/de-10-giai-giua-ki-2-cau-2.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="326" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="box-sizing: border-box; font-weight: 640;">Bài 3.</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;">a) B&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; b) C &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c) B&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;d) C</p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="box-sizing: border-box; font-weight: 640;">Bài 4.</span></p><span style="color: rgb(0, 0, 0);"><img alt="Đề kiểm tra Toán 4 | Đề thi Toán 4" height="132" src="https://sachgiai.com/uploads/news/2019_02/de-10-giai-giua-ki-2-cau-4.png" style="box-sizing: border-box; max-width: 100%; vertical-align: middle; border: 0px; display: block; margin-left: auto; margin-right: auto; padding-bottom: 4px; color: rgb(49, 49, 49); font-family: &#039;Open Sans&#039;, Arial, sans-serif; font-size: 14px;" width="485" /></span><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="box-sizing: border-box; font-weight: 640;">Bài 5.</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;">Đổi : 3 m = 30 dm</p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;">Nửa chu vi tấm kính đó là : 30 : 2 = 15 (dm)</p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;">Chiều dài tấm kính đó là : ( 15 + 3 ) : 2 = 9 (dm)</p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;">Chiều rộng tấm kính đó là : 9 – 3 = 6 (dm)</p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;">Diện tích tấm kính đó là : 9 x 6 = 54 (dm<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>)</p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;">Đáp số : 54 dm<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;"><span style="box-sizing: border-box; font-weight: 640;">Bài 6.</span></p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;">Số mét vuông buổi sáng ông Hùng cày được là : 1500 x 2/5 = 600 (m<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>)</p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;">Số mét vuông còn lại chưa cày là : 1500 x 1/10 = 150 9m<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>)</p><p style="box-sizing: border-box; color: rgb(0, 0, 0); line-height: 24px; margin: 0px 0.2em 1em; overflow-wrap: break-word; padding: 0px; text-align: justify; font-size: 15px; font-family: &#039;Open Sans&#039;, Arial, sans-serif;">Số mét vuông buổi chiều ông Hùng cày được là : 1500 – (600 + 150 ) = 750 (m<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span>)<br  />Đáp số : 750 m<span style="box-sizing: border-box; position: relative; font-size: 11.25px; line-height: 0; vertical-align: baseline; top: -0.5em;">2</span></p></div>
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