Question

Tính:       

9 – 3  + 6                           35 + 10 – 30

8 + 6 – 7                            87 – 7 + 14

Answer 1

9 – 3 + 6 = 6 + 6 = 12

35 + 10 – 30 = 45 – 30 = 15 

8 + 6 – 7 = 14 – 7 = 7

 87 – 7 + 14 = 80 + 14 = 94