1: (10 ÷ (8 - 3)) × 12
2: 10 ÷ (8 - 3) × 12
3: 10 ÷ ((8 - 3) ÷ 12)
4: 10 × (12 ÷ (8 - 3))
5: 10 × 12 ÷(8 - 3)
6: (10 × 12) ÷ (8 - 3)
7: (12 ÷ (8 - 3)) × 10
8: 12 ÷ (8 - 3) × 10
9: 12 ÷ ((8 - 3) ÷ 10)
10: 12 × (10 ÷ (8 - 3))
11: 12 × 10 ÷(8 - 3)
12: (12 × 10) ÷ (8 - 3)
10除以(8-3)乘12