4. Реши примеры.

Решение:

1. \( 55 + 43 - 9 = 98 - 9 = 89 \)
2. \( 52 + 41 - 5 = 93 - 5 = 88 \)
3. \( 38 + 12 - 18 = 50 - 18 = 32 \)
4. \( 23 + 26 + 7 = 49 + 7 = 56 \)
5. \( 41 + 26 - 8 = 67 - 8 = 59 \)
6. \( 52 + 38 - 29 = 90 - 29 = 61 \)
7. \( 52 + 35 - 9 = 87 - 9 = 78 \)
8. \( 66 + 24 - 45 = 90 - 45 = 45 \)
9. \( 14 + 66 - 29 = 80 - 29 = 51 \)
10. \( 77 + 12 + 7 = 89 + 7 = 96 \)
11. \( 55 + 45 - 59 = 100 - 59 = 41 \)
12. \( 52 + 48 - 55 = 100 - 55 = 45 \)

Ответ: 89, 88, 32, 56, 59, 61, 78, 45, 51, 96, 41, 45.