Решение:
- \( 81 : 9 + (4 + 3) \times 7 = 9 + 7 \times 7 = 9 + 49 = 58 \)
- \( (64 - 32) : 8 - 21 : 7 = 32 : 8 - 3 = 4 - 3 = 1 \)
- \( (64 - 8) : 7 + (15 - 2) \times 4 = 56 : 7 + 13 \times 4 = 8 + 52 = 60 \)
- \( 12 : (8 - 5) + 3 \times 10 = 12 : 3 + 30 = 4 + 30 = 34 \)
- \( 56 : (9 - 2) + 8 \times 3 = 56 : 7 + 24 = 8 + 24 = 32 \)
- \( 32 : (8 - 6) : 8 + 12 = 32 : 2 : 8 + 12 = 16 : 8 + 12 = 2 + 12 = 14 \)
Ответ: 58; 1; 60; 34; 32; 14.