Question

869 срочно!!!!!!!!!!!!

Answer 1

Решение и ответ:

1) -56 + 23 + (-23) = -56 + 23 - 23 = -56

2) -75 + 30 + (-15) = -75 + 30 - 15 = -75 - 15 + 30 = -90 + 30 = -60

3) 52 + (-22 + 71)  = 52 - 22 + 71 = 30 + 71 = 101

4) 81 + (-31 + 50) = 81 - 31 + 50 = 50 + 50 = 100

5) 46 + (-20) + 24 = 46 - 20 + 24 = 46 + 24 - 20 = 70 - 20 = 50

6) 69 + (-29) + 10 = 69 - 29 + 10 = 40 + 10 = 50