| 序号 | 题目:4,8,10,12 | |
|---|---|---|
| 1 | ((10 + 8) − 12) × 4 | |
| 2 | (8 − (12 − 10)) × 4 | |
| 3 | (10 − (12 − 8)) × 4 | |
| 4 | (8 + 4) × (12 − 10) | |
| 5 | (10 − 4) × (12 − 8) | |
| 6 | 12 × ((8 + 4) − 10) | |
| 7 | 12 × (8 − (10 − 4)) | |
| 8 | 12 × (4 − (10 − 8)) | |
| 9 | (12 + 10) + (8 ÷ 4) | |
| 10 | (12 × 4) ÷ (10 − 8) | |
| 11 | (12 + (8 ÷ 4)) + 10 | |
| 12 | (12 ÷ (10 − 8)) × 4 | |
| 13 | 12 × (4 ÷ (10 − 8)) | |
| 14 | 12 + (10 + (8 ÷ 4)) | |
| 15 | 4 ÷ ((10 − 8) ÷ 12) | |
| 16 | 12 ÷ ((10 − 8) ÷ 4) | |