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