Tính
a) 5 × 2 = .....
10 : 2 = .....
10 : 5 = .....
b) 3 × 5 = ......
15 : 3 = .....
15 : 5 = .....
a) 5 × 2 = 10
10 : 2 = 5
10 : 5 = 2
b) 3 × 5 = 15
15 : 3 = 5
15 : 5 = 3
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