4. Perform the calculations: 30 + (24 - 8) = 40 - (30 - 6) = 60 + (42 - 7) =

Решение:

1. \( 30 + (24 - 8) = 30 + 16 = 46 \)
2. \( 40 - (30 - 6) = 40 - 24 = 16 \)
3. \( 60 + (42 - 7) = 60 + 35 = 95 \)

Ответ: 46, 16, 95.