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