Решение:
9 × 8 = 72
8 × 8 = 64
7 × 7 = 49
64 ∶ 8 = 8
56 ∶ 8 = 7
72 ∶ 8 = 9
96 - 56 ∶ 8 = 96 - 7 = 89
21 ∶ 3 + 18 = 7 + 18 = 25
40 - 15 ∶ 5 = 40 - 3 = 37
5 × 2 = 10
3 × 9 = 27
2 × 6 = 12
Ответ: 72; 64; 49; 8; 7; 9; 89; 25; 37; 10; 27; 12.