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