Решение:
- \( 80 : 5 = 16 \)
- \( 2 \cdot 28 = 56 \)
- \( 42 : 14 = 3 \)
- \( 16 \cdot 4 = 64 \)
- \( 75 : 25 = 3 \)
- \( 15 \cdot 5 = 75 \)
- \( 36 \cdot 2 = 72 \)
- \( 57 : 3 = 19 \)
- \( 3 \cdot 23 = 69 \)
- \( 87 : 29 = 3 \)
Ответ: 16, 56, 3, 64, 3, 75, 72, 19, 69, 3.