24点题目：使用数字 2 2 8 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38个解（使用交换律变换后算一个解）,
难度系数是2星
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简单24点题目
】。
| 序号 |
题目：2,2,8,12 |
| 1 |
((12 + 2) + 8) + 2 |
| 2 |
((12 + 8) + 2) + 2 |
| 3 |
((12 + 2) + 2) + 8 |
| 4 |
(12 + (8 + 2)) + 2 |
| 5 |
(12 + (2 × 2)) + 8 |
| 6 |
(12 + 8) + (2 × 2) |
| 7 |
(12 + 2) + (8 + 2) |
| 8 |
(12 + 8) + (2 + 2) |
| 9 |
(12 + (2 + 2)) + 8 |
| 10 |
12 + (8 + (2 + 2)) |
| 11 |
12 + ((8 + 2) + 2) |
| 12 |
12 + ((8 − 2) × 2) |
| 13 |
12 + (8 + (2 × 2)) |
| 14 |
((12 × 8) ÷ 2) ÷ 2 |
| 15 |
(12 × 8) ÷ (2 + 2) |
| 16 |
(8 × (12 ÷ 2)) ÷ 2 |
| 17 |
(12 × (8 ÷ 2)) ÷ 2 |
| 18 |
(12 × 8) ÷ (2 × 2) |
| 19 |
(12 ÷ 2) × (8 ÷ 2) |
| 20 |
8 × (12 ÷ (2 + 2)) |
| 21 |
12 × ((8 ÷ 2) − 2) |
| 22 |
12 × (8 ÷ (2 × 2)) |
| 23 |
12 × ((8 ÷ 2) ÷ 2) |
| 24 |
8 × (12 ÷ (2 × 2)) |
| 25 |
8 × ((12 ÷ 2) ÷ 2) |
| 26 |
12 × (8 ÷ (2 + 2)) |
| 27 |
(8 ÷ 2) ÷ (2 ÷ 12) |
| 28 |
(8 ÷ (2 ÷ 12)) ÷ 2 |
| 29 |
(12 ÷ 2) ÷ (2 ÷ 8) |
| 30 |
(12 ÷ (2 ÷ 8)) ÷ 2 |
| 31 |
12 ÷ ((2 + 2) ÷ 8) |
| 32 |
8 ÷ ((2 + 2) ÷ 12) |
| 33 |
8 ÷ (2 ÷ (12 ÷ 2)) |
| 34 |
8 ÷ ((2 × 2) ÷ 12) |
| 35 |
12 ÷ (2 × (2 ÷ 8)) |
| 36 |
8 ÷ (2 × (2 ÷ 12)) |
| 37 |
12 ÷ (2 ÷ (8 ÷ 2)) |
| 38 |
12 ÷ ((2 × 2) ÷ 8) |