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