Вып вычитание числа из суммы (70+10)-5 (30+10)-6 (50+10)-8 (30+10)-7 (40+10)-3 (20+10)-2

1) (70 + 10) - 5 = 80 - 5 = 75;

или 70 + 10 - 5 = 70 + 5 = 75;

2) (30 + 10) - 6 = 40 - 6 = 34;

или 30 + 10 - 6 = 30 + 4 = 34;

3) (50 + 10) - 8 = 60 - 8 = 52;

или 50 + 10 - 8 = 50 + 2 = 52;

4) (30 + 10) - 7 = 40 - 7 = 33;

или 30 + 10 - 7 = 30 + 3 = 33;

5) (40 + 10) - 3 = 50 - 3 = 47;

или 40 + 10 - 3 = 40 + 7 = 47;

6) (20 + 10) - 2 = 30 - 2 = 28;

или 20 + 10 - 2 = 20 + 8 = 28.