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