24点题目：使用数字 2 4 4 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57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：2,4,4,12 |
| 1 |
((12 + 4) − 4) × 2 |
| 2 |
((12 − 4) − 2) × 4 |
| 3 |
((12 × 2) − 4) + 4 |
| 4 |
((12 − 2) − 4) × 4 |
| 5 |
((12 − 4) + 4) × 2 |
| 6 |
((12 × 2) + 4) − 4 |
| 7 |
(12 − (4 + 2)) × 4 |
| 8 |
(12 + (4 − 4)) × 2 |
| 9 |
(12 × 2) + (4 − 4) |
| 10 |
(12 + 4) + (4 × 2) |
| 11 |
(12 + (4 × 2)) + 4 |
| 12 |
(12 × 2) − (4 − 4) |
| 13 |
(12 − (4 − 4)) × 2 |
| 14 |
12 × ((4 + 2) − 4) |
| 15 |
12 × (2 + (4 − 4)) |
| 16 |
12 + ((4 × 2) + 4) |
| 17 |
12 × (4 − (4 − 2)) |
| 18 |
12 × (2 − (4 − 4)) |
| 19 |
((12 × 2) × 4) ÷ 4 |
| 20 |
((12 ÷ 4) × 2) × 4 |
| 21 |
((12 × 4) × 2) ÷ 4 |
| 22 |
((12 × 2) ÷ 4) × 4 |
| 23 |
((12 × 4) ÷ 4) × 2 |
| 24 |
(12 × 2) × (4 ÷ 4) |
| 25 |
(12 × 4) ÷ (4 ÷ 2) |
| 26 |
(12 × 2) ÷ (4 ÷ 4) |
| 27 |
(4 × (12 ÷ 4)) × 2 |
| 28 |
(4 × 2) × (12 ÷ 4) |
| 29 |
(12 ÷ (4 ÷ 2)) × 4 |
| 30 |
(12 ÷ (4 − 2)) × 4 |
| 31 |
(12 ÷ (4 ÷ 4)) × 2 |
| 32 |
(12 × (4 × 2)) ÷ 4 |
| 33 |
(12 × 4) ÷ (4 − 2) |
| 34 |
(12 × (4 ÷ 4)) × 2 |
| 35 |
12 × (2 ÷ (4 ÷ 4)) |
| 36 |
12 × ((4 × 2) ÷ 4) |
| 37 |
12 × (4 − (4 ÷ 2)) |
| 38 |
12 × (4 ÷ (4 ÷ 2)) |
| 39 |
12 × (2 × (4 ÷ 4)) |
| 40 |
12 × (4 ÷ (4 − 2)) |
| 41 |
(4 ÷ (4 ÷ 12)) × 2 |
| 42 |
(12 × 4) × (2 ÷ 4) |
| 43 |
(12 × (2 ÷ 4)) × 4 |
| 44 |
(4 × 2) ÷ (4 ÷ 12) |
| 45 |
(2 ÷ (4 ÷ 12)) × 4 |
| 46 |
12 ÷ (4 ÷ (4 × 2)) |
| 47 |
12 × (4 × (2 ÷ 4)) |
| 48 |
4 ÷ ((4 ÷ 12) ÷ 2) |
| 49 |
2 ÷ (4 ÷ (12 × 4)) |
| 50 |
4 ÷ ((4 ÷ 2) ÷ 12) |
| 51 |
2 ÷ ((4 ÷ 4) ÷ 12) |
| 52 |
12 ÷ ((4 ÷ 2) ÷ 4) |
| 53 |
4 ÷ ((4 − 2) ÷ 12) |
| 54 |
2 ÷ ((4 ÷ 12) ÷ 4) |
| 55 |
12 ÷ ((4 − 2) ÷ 4) |
| 56 |
12 ÷ ((4 ÷ 4) ÷ 2) |
| 57 |
4 ÷ (4 ÷ (12 × 2)) |