Решение:
- \( 27 : 3 \cdot 8 = 9 \cdot 8 = 72 \)
- \( 72 : 8 \cdot 7 = 9 \cdot 7 = 63 \)
- \( 63 : 9 \cdot 4 = 7 \cdot 4 = 28 \)
- \( 45 : 9 \cdot 8 = 5 \cdot 8 = 40 \)
- \( 18 : 2 \cdot 9 = 9 \cdot 9 = 81 \)
- \( 56 : 8 \cdot 7 = 7 \cdot 7 = 49 \)
- \( 40 : 5 \cdot 8 = 8 \cdot 8 = 64 \)
- \( 27 : 9 \cdot 8 = 3 \cdot 8 = 24 \)
Ответ: 72, 63, 28, 40, 81, 49, 64, 24.