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