6. 80 – (24 – 6) 90 – (36 – 8) 48+(13+7) 34+ (18+2) 89–(64 – 4) 75–(37 – 7)

Решим примеры:

1. 80 – (24 – 6) = 80 – 18 = 62
2. 90 – (36 – 8) = 90 – 28 = 62
3. 48 + (13 + 7) = 48 + 20 = 68
4. 34 + (18 + 2) = 34 + 20 = 54
5. 89 – (64 – 4) = 89 – 60 = 29
6. 75 – (37 – 7) = 75 – 30 = 45

Ответ: 62, 62, 68, 54, 29, 45