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