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		<h1>Đề thi giữa học kì 1 môn Toán lớp 5 năm 2020 - 2021</h1>
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			Đề thi giữa học kì 1 môn Toán lớp 5 năm 2020 - 2021, có đáp án kèm theo. Mời các bạn cùng tham khảo.
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			<h2 style="text-align: justify;"><strong>&nbsp;<u>I- PHẦN TRẮC NGHIỆM</u>: (3 điểm)</strong></h2>

<div style="text-align: justify;"><b><i>Khoanh vào chữ cái đặt trước câu trả lời đúng: </i></b><br />
<b>Câu 1</b>: <strong>Trong các phân số: <img alt="" height="35" src="https://sachgiai.com/uploads/news/2020_11/image-20201106205357-1.png" width="8" /><span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">; </span></span></span><img alt="" height="35" src="https://sachgiai.com/uploads/news/2020_11/image-20201106205357-2.png" width="8" /><span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">; </span></span></span><img alt="" height="35" src="https://sachgiai.com/uploads/news/2020_11/image-20201106205357-3.png" width="8" /><span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">; </span></span></span><img alt="" height="35" src="https://sachgiai.com/uploads/news/2020_11/image-20201106205357-4.png" width="8" /><span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">;</span></span></span></strong><br />
<em><strong><img alt="" src="https://sachgiai.com/file:///C:\Users\Admin\AppData\Local\Temp\msohtmlclip1\01\clip_image010.gif" style="width:16px; height:41px" />&nbsp;Phân số nào có thể viết được thành phân số thập phân.</strong></em><br />
A.<strong>&nbsp;<strong><img alt="" height="35" src="https://sachgiai.com/uploads/news/2020_11/image-20201106205357-1.png" width="8" /></strong></strong>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;<br />
B. <strong><strong><img alt="" height="35" src="https://sachgiai.com/uploads/news/2020_11/image-20201106205357-2.png" width="8" /></strong></strong>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<br />
C.&nbsp;<strong><img alt="" height="35" src="https://sachgiai.com/uploads/news/2020_11/image-20201106205357-3.png" width="8" /></strong>&nbsp;<img alt="" src="https://sachgiai.com/file:///C:\Users\Admin\AppData\Local\Temp\msohtmlclip1\01\clip_image008.gif" style="width:16px; height:41px" />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br />
D. <img alt="" src="https://sachgiai.com/file:///C:\Users\Admin\AppData\Local\Temp\msohtmlclip1\01\clip_image010.gif" style="width:16px; height:41px" /><strong><img alt="" height="35" src="https://sachgiai.com/uploads/news/2020_11/image-20201106205357-4.png" width="8" /></strong><br />
<br />
<b>Câu 2</b>: Số thập phân gồm có&nbsp; <b>Bốn trăm mười lăm đơn vị, hai phần trăm và ba phần nghìn</b> viết là:<br />
&nbsp;A . 415,23&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br />
B.&nbsp; 415,023&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br />
C&nbsp; . 415,230<br />
<br />
<b>Câu 3</b>: <b>5m<sup>2</sup> 4dm<sup>2</sup> = ….. m<sup>2</sup>&nbsp;&nbsp; </b><i>Số thích hợp để viết vào chỗ chấm là:</i><br />
&nbsp;A. 54&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br />
B. 5,4&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br />
C. 5,04&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br />
D. 5,004<br />
<br />
<b>Câu 4:</b>12 ha 5 m<sup>2</sup> =………ha<br />
Số thập phân cần viết vào chỗ chấm là:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br />
A.&nbsp;12,0005&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br />
B. 12, 05&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br />
C.&nbsp;12 ,5&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br />
<br />
<b>Câu 5</b>:&nbsp; Mua 5 quyển vở hết 25 000 đồng. Mua 20 quyển vở như thế thì hết số tiền là:<br />
A.&nbsp; 50 000 đồng&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br />
B. 100 000 đồng&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br />
C. 5 000 đồng&nbsp;&nbsp;&nbsp;<br />
<br />
<b>Câu 6 </b>&nbsp;Trong số 135,43&nbsp;&nbsp; chữ số 3 ở bên trái có giá trị gấp chữ số 3 ở bên phải số lần là :<br />
A. 10 lần.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br />
B. 100 lần&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br />
C. 1000 lần<br />
&nbsp;</div>

<h2 style="text-align: justify;"><strong><u>II- PHẦN TỰ LUẬN</u> ( 7 điểm)</strong></h2>

<div style="text-align: justify;"><b>Câu 1: Tính: </b>( 1,5&nbsp; điểm)<br />
a) 2<span style="font-family:&#039;Cambria Math&#039;,&#039;serif&#039;"><span style="font-style:italic"></span></span> <img alt="" height="45" src="https://sachgiai.com/uploads/news/2020_11/image-20201106210128-9.png" width="10" /><img alt="" src="https://sachgiai.com/file:///C:\Users\Admin\AppData\Local\Temp\msohtmlclip1\01\clip_image017.gif" style="width:16px; height:41px" />&nbsp;- 1<span style="font-family:&#039;Cambria Math&#039;,&#039;serif&#039;"><span style="font-style:italic"></span></span> <img alt="" height="45" src="https://sachgiai.com/uploads/news/2020_11/image-20201106210201-10.png" width="10" />&nbsp;= ..................................................................<br />
b) 2&nbsp;<img alt="" height="45" src="https://sachgiai.com/uploads/news/2020_11/image-20201106205934-6.png" width="10" />&nbsp;:&nbsp;1<span style="font-family:&#039;Cambria Math&#039;,&#039;serif&#039;"><span style="font-style:italic"></span></span> <img alt="" height="45" src="https://sachgiai.com/uploads/news/2020_11/image-20201106210000-7.png" width="10" />&nbsp; +&nbsp;<img alt="" height="45" src="https://sachgiai.com/uploads/news/2020_11/image-20201106210044-8.png" width="10" />&nbsp;<img alt="" src="https://sachgiai.com/file:///C:\Users\Admin\AppData\Local\Temp\msohtmlclip1\01\clip_image024.gif" style="width:15px; height:41px" />=..............................................................<br />
<br />
<b>Câu 2 : </b>( 2 điểm)<b>&nbsp; </b>Xếp các số sau theo thứ tự :<br />
<b>&nbsp;</b>a)&nbsp; Từ lớn đến bé :&nbsp; 5,246&nbsp; ; 5,462&nbsp; ;&nbsp; 6,542&nbsp; ;&nbsp; 6,524&nbsp; ;&nbsp; 4,246<br />
....................................................................................<br />
....................................................................................<br />
b)&nbsp; Từ bé đến lớn : 12,45&nbsp; ;&nbsp; 12,54&nbsp; ;&nbsp; 14,52&nbsp; ;&nbsp; 14,25&nbsp; ;&nbsp; 15,42<br />
....................................................................................<br />
....................................................................................<br />
<b>Câu 4 : </b>(2,5 điểm) Để lát nền một phòng học hình chữ nhật, người ta dùng loại gạch men hình vuông cạnh 30 cm. Hỏi cần bao nhiêu viên gạch để lát kín nền phòng đó, biết rằng phòng học đó có chiều dài 9m và có chiều rộng bằng <img alt="" src="https://sachgiai.com/file:///C:\Users\Admin\AppData\Local\Temp\msohtmlclip1\01\clip_image004.gif" style="width:16px; height:41px" />&nbsp;chiều dài ( diện tích phần mạch vữa không đáng kể).<br />
....................................................................................<br />
....................................................................................<br />
....................................................................................<br />
<b>Câu 5 : ( 1 điểm) </b>Ba bạn Hoa, Mai và Lan gấp được tất cả 150 ngôi sao. Hoa gấp được số ngôi sao ít hơn của Mai và Lan là 50 ngôi sao . Số ngôi sao của Mai bằng &nbsp;<img alt="" height="45" src="https://sachgiai.com/uploads/news/2020_11/image-20201106205900-5.png" width="10" />&nbsp;số ngôi sao của Lan. Hỏi mỗi bạn gấp được bao nhiêu ngôi sao ?<br />
.....................................................................................<br />
....................................................................................<br />
....................................................................................<br />
....................................................................................</div>

<h2 style="text-align: center;"><b>ĐÁP ÁN</b><b> VÀ BIỂU ĐIỂM</b><b> KIỂM TRA ĐỊNH KỲ GIỮA HỌC KỲ I </b><br />
<b>Năm học : 2020 – 2021</b><br />
<b>MÔN TOÁN- LỚP 5</b></h2>

<h2 style="text-align: justify;"><b><u>I. Phần trắc nghiệm</u></b> <b><i>( 3 điểm)</i></b></h2>

<table border="1" style="width:100%;">
	<tbody>
		<tr>
			<td style="text-align: center;" valign="top"><strong>Câu 1</strong></td>
			<td style="text-align: center;" valign="top"><strong>Câu 2</strong></td>
			<td style="text-align: center;" valign="top"><strong>Câu 3</strong></td>
			<td style="text-align: center;" valign="top"><strong>Câu 4</strong></td>
			<td style="text-align: center;" valign="top"><strong>Câu 5</strong></td>
			<td style="text-align: center;" valign="top"><strong>Câu 6</strong></td>
		</tr>
		<tr>
			<td style="text-align: center;" valign="top"><strong>D</strong></td>
			<td style="text-align: center;" valign="top"><strong>B</strong></td>
			<td style="text-align: center;" valign="top"><strong>C</strong></td>
			<td style="text-align: center;" valign="top"><strong>A</strong></td>
			<td style="text-align: center;" valign="top"><strong>B</strong></td>
			<td style="text-align: center;" valign="top"><strong>C</strong></td>
		</tr>
		<tr>
			<td style="text-align: center;" valign="top"><strong><i>0,5 điểm</i></strong></td>
			<td style="text-align: center;" valign="top"><strong><i>0,5 điểm</i></strong></td>
			<td style="text-align: center;" valign="top"><strong><i>0,5 điểm</i></strong></td>
			<td style="text-align: center;" valign="top"><strong><i>0,5 điểm</i></strong></td>
			<td style="text-align: center;" valign="top"><strong><i>0,5 điểm</i></strong></td>
			<td style="text-align: center;" valign="top"><strong><i>0,5 điểm</i></strong></td>
		</tr>
	</tbody>
</table>

<div style="text-align: justify;">&nbsp;</div>

<h2 style="text-align: justify;"><b><u>II- Phần tự luận: </u></b><u>(</u>7điểm)</h2>

<div style="text-align: justify;"><b>Câu 1</b>: ( 1,5 điểm)&nbsp; &nbsp;Làm đúng phần a được 0,5 điểm. KQ: 5/4<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;đúng phần b được1 điểm .&nbsp;&nbsp;&nbsp; KQ: 47/21<br />
<b>Câu 3</b>: ( 2 điểm) Xếp đúng mỗi phần được 1 điểm.</div>
	<li style="text-align: justify;">6,542 &gt; 6,524 &gt; 5,462 &gt; 5,246 &gt; 4,246</li>
	<li style="text-align: justify;">12,45&nbsp; &lt;&nbsp; 12,54&nbsp; &lt;&nbsp; 14,25&nbsp; &lt; 14,52&nbsp; &lt;&nbsp;&nbsp;&nbsp; 15,42</li>
<div style="text-align: justify;"><b>Câu 4 : (</b>2,5 điểm)<b> </b><br />
Chiều rộng nền phòng: 9 x&nbsp; <img alt="" src="https://sachgiai.com/file:///C:\Users\Admin\AppData\Local\Temp\msohtmlclip1\01\clip_image004.gif" style="width:16px; height:41px" />&nbsp;= 6 (m )&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0,5 điểm<br />
Diện&nbsp; tích nền phòng:&nbsp;&nbsp;&nbsp; 9 x 6 = 54 ( m <sup>2</sup>)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0,5 điểm<br />
Đổi:&nbsp; 54&nbsp; m <sup>2</sup>&nbsp; = 54 0000 cm<sup>2</sup>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;0,25 điểm<br />
Diện&nbsp; tích một viên gạch : 30 x 30 = 900 (cm<sup>2</sup>)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0,5 điểm<br />
Số viên gạch: 54 0000 : 900 = 600 ( viên )&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0,5 điểm<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Đáp số&nbsp; : 0,25 điểm<br />
<b>Câu 5</b>: ( 1 điểm)&nbsp;<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Số ngôi sao của Hoa : ( 150 – 50 ) : 2 = 50 ( ngôi sao)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0,2 điểm<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Số ngôi sao của Mai và Lan:&nbsp; 150 – 50 = 100 ( ngôi sao)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0,2 điểm<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Vẽ sơ đồ Mai 2 phần, Lan 3 phần&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;0,2 điểm<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Số ngôi sao của Mai : 100: ( 2 + 3) x 2 = 40 ( ngôi sao)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0,2 điểm<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Số ngôi sao của Lan : 100- 40 = 60 ( ngôi sao)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0,2 điểm&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Đáp số:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br />
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