Giải Vở bài tập Toán lớp 3 bài 30: Bảng nhân 7

Thứ ba - 20/08/2019 12:02
Giải Vở bài tập Toán lớp 3 bài 30: Bảng nhân 7
1. Tính nhẩm:
7 x 2 = 14
7 x 4 = 28
7 x 8 = 56

7 x 5 = 35
7 x 3 = 21
7 x 1 = 7

7 x 6 = 42
7 x 9 = 63
7 x 10 = 70

0 x 7 = 0
7 x 0 = 0
1 x 7 = 7

2. Số?
giai VBt toan lop 3 bai 30 cau 2

3. Một lớp học có 5 tổ, mỗi tổ đều có 7 học sinh. Hỏi lớp học đó có bao nhiêu học sinh ?
Tóm tắt:
giai VBt toan lop 3 bai 30 cau 3
Giải:
Số học sinh có trong 5 tổ là:
7 x 5 = 35 (học sinh)
Đáp số: 35 học sinh

4. Đếm thêm 7 rồi viết mỗi số thích hợp vào dưới mỗi gạch của tia số:
giai VBt toan lop 3 bai 30 cau 4

5. (Học sinh tự xếp)
 
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