24点题目：使用数字 2 2 2 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36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：2,2,2,12 |
| 1 |
((12 − 2) + 2) × 2 |
| 2 |
((12 × 2) + 2) − 2 |
| 3 |
((12 + 2) − 2) × 2 |
| 4 |
((12 × 2) − 2) + 2 |
| 5 |
(12 × 2) − (2 − 2) |
| 6 |
(12 + (2 − 2)) × 2 |
| 7 |
(12 − (2 − 2)) × 2 |
| 8 |
(12 × 2) + (2 − 2) |
| 9 |
12 × (2 + (2 − 2)) |
| 10 |
12 × ((2 + 2) − 2) |
| 11 |
12 × ((2 × 2) − 2) |
| 12 |
12 × (2 − (2 − 2)) |
| 13 |
((12 × 2) ÷ 2) × 2 |
| 14 |
((12 ÷ 2) × 2) × 2 |
| 15 |
((12 × 2) × 2) ÷ 2 |
| 16 |
(12 × (2 + 2)) ÷ 2 |
| 17 |
(12 ÷ (2 ÷ 2)) × 2 |
| 18 |
(12 × 2) ÷ (2 ÷ 2) |
| 19 |
(12 × 2) × (2 ÷ 2) |
| 20 |
(12 ÷ 2) × (2 + 2) |
| 21 |
(12 × (2 ÷ 2)) × 2 |
| 22 |
(12 × (2 × 2)) ÷ 2 |
| 23 |
(12 ÷ 2) × (2 × 2) |
| 24 |
12 × (2 × (2 ÷ 2)) |
| 25 |
12 × (2 ÷ (2 ÷ 2)) |
| 26 |
12 × ((2 + 2) ÷ 2) |
| 27 |
12 × ((2 × 2) ÷ 2) |
| 28 |
(2 × 2) ÷ (2 ÷ 12) |
| 29 |
(2 ÷ (2 ÷ 12)) × 2 |
| 30 |
(2 + 2) ÷ (2 ÷ 12) |
| 31 |
2 ÷ ((2 ÷ 12) ÷ 2) |
| 32 |
12 ÷ ((2 ÷ 2) ÷ 2) |
| 33 |
2 ÷ (2 ÷ (12 × 2)) |
| 34 |
2 ÷ ((2 ÷ 2) ÷ 12) |
| 35 |
12 ÷ (2 ÷ (2 × 2)) |
| 36 |
12 ÷ (2 ÷ (2 + 2)) |