| 序号 | 题目:3,4,10,12 | |
|---|---|---|
| 1 | (3 × (12 − 10)) × 4 | |
| 2 | (4 × 3) × (12 − 10) | |
| 3 | (4 × (12 − 10)) × 3 | |
| 4 | 12 × ((4 × 3) − 10) | |
| 5 | (10 − 4) × (12 ÷ 3) | |
| 6 | (12 × (10 − 4)) ÷ 3 | |
| 7 | (10 − (12 ÷ 3)) × 4 | |
| 8 | 12 × ((10 − 4) ÷ 3) | |
| 9 | (10 − 4) ÷ (3 ÷ 12) | |
| 10 | 12 ÷ (3 ÷ (10 − 4)) | |
| 11 | 12 ÷ (3 − (10 ÷ 4)) | |