b) 4 × 3 =… 0 × 3 =… 7 × 3 =… 3 × 0 =… 3 × 1 =…1 × 3 =…

Câu hỏi :

b)

4 × 3 =…                         0 × 3 =…

7 × 3 =…                         3 × 0 =…

3 × 1 =…                         1 × 3 =…

* Đáp án

* Hướng dẫn giải

b)

4 × 3 = 12                        0 × 3 = 0

7 × 3 = 21                        3 × 0 = 0

3 × 1 = 3                          1 × 3 = 3

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