CÂU3.A. 7⨯ 6 + 18 = 42 + 18= 60B. 7⨯ 3 + 29 = 21 + 29B. 7⨯ 3 + 29 = 21...

Câu3.a. 7⨯ 6 + 18 = 42 + 18= 60b. 7⨯ 3 + 29 = 21 + 29= 50c. 7⨯ 10 + 40 = 70 + 40= 110d. 7⨯ 8 + 38 = 56 + 38= 94