| 序号 | 题目：3,3,6,9 | |
|---|---|---|
| 1 | ((3 × 3) + 6) + 9 | |
| 2 | ((9 − 3) × 3) + 6 | |
| 3 | ((9 × 3) − 6) + 3 | |
| 4 | ((6 × 3) − 3) + 9 | |
| 5 | ((9 × 3) + 3) − 6 | |
| 6 | ((6 × 3) + 9) − 3 | |
| 7 | (9 × (6 − 3)) − 3 | |
| 8 | (9 × 3) − (6 − 3) | |
| 9 | (9 + 6) + (3 × 3) | |
| 10 | (6 × 3) + (9 − 3) | |
| 11 | (9 + (3 × 3)) + 6 | |
| 12 | ((9 + 3) × 6) ÷ 3 | |
| 13 | (9 + 3) × (6 ÷ 3) | |
| 14 | 6 × ((9 + 3) ÷ 3) | |
| 15 | (9 + 3) ÷ (3 ÷ 6) | |
| 16 | 6 ÷ (3 ÷ (9 + 3)) | |