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