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