24点题目：使用数字 2 11 11 12，利用加减乘除、括号算出24。数字顺序可以任意调换，下面列出所有可行算式。
本题共有45个解（使用交换律变换后算一个解）,
难度系数是1星
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最简单入门24点题目
】。
| 序号 |
题目：2,11,11,12 |
| 1 |
((12 × 2) − 11) + 11 |
| 2 |
((12 × 2) + 11) − 11 |
| 3 |
((12 + 11) − 11) × 2 |
| 4 |
(11 + (12 − 11)) × 2 |
| 5 |
(12 × 2) + (11 − 11) |
| 6 |
(12 + (11 − 11)) × 2 |
| 7 |
(12 − (11 − 11)) × 2 |
| 8 |
(12 × 2) − (11 − 11) |
| 9 |
12 × (2 − (11 − 11)) |
| 10 |
12 × (11 − (11 − 2)) |
| 11 |
12 × (2 + (11 − 11)) |
| 12 |
12 × ((11 + 2) − 11) |
| 13 |
((11 × 2) × 12) ÷ 11 |
| 14 |
((12 × 11) × 2) ÷ 11 |
| 15 |
((12 × 2) × 11) ÷ 11 |
| 16 |
((12 × 11) ÷ 11) × 2 |
| 17 |
(12 × 2) × (11 ÷ 11) |
| 18 |
(12 ÷ (11 ÷ 11)) × 2 |
| 19 |
(12 × 2) ÷ (11 ÷ 11) |
| 20 |
(12 × (11 ÷ 11)) × 2 |
| 21 |
12 × (2 × (11 ÷ 11)) |
| 22 |
12 × ((11 × 2) ÷ 11) |
| 23 |
12 × (2 ÷ (11 ÷ 11)) |
| 24 |
(12 × 11) ÷ (11 ÷ 2) |
| 25 |
(11 ÷ (11 ÷ 12)) × 2 |
| 26 |
(11 × (12 ÷ 11)) × 2 |
| 27 |
(11 × 2) × (12 ÷ 11) |
| 28 |
(11 × 2) ÷ (11 ÷ 12) |
| 29 |
(12 × 11) × (2 ÷ 11) |
| 30 |
11 × ((12 × 2) ÷ 11) |
| 31 |
11 × (12 × (2 ÷ 11)) |
| 32 |
11 × (2 × (12 ÷ 11)) |
| 33 |
12 ÷ ((11 ÷ 2) ÷ 11) |
| 34 |
12 ÷ (11 ÷ (11 × 2)) |
| 35 |
2 ÷ ((11 ÷ 11) ÷ 12) |
| 36 |
11 ÷ (11 ÷ (12 × 2)) |
| 37 |
12 × (11 × (2 ÷ 11)) |
| 38 |
2 ÷ (11 ÷ (12 × 11)) |
| 39 |
12 × (11 ÷ (11 ÷ 2)) |
| 40 |
11 × (2 ÷ (11 ÷ 12)) |
| 41 |
11 ÷ ((11 ÷ 12) ÷ 2) |
| 42 |
12 ÷ ((11 ÷ 11) ÷ 2) |
| 43 |
11 ÷ ((11 ÷ 2) ÷ 12) |
| 44 |
11 × (12 ÷ (11 ÷ 2)) |
| 45 |
2 ÷ ((11 ÷ 12) ÷ 11) |