24点题目：使用数字 3 4 6 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43个解（使用交换律变换后算一个解）,
难度系数是3星
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中等偏易24点题目
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| 序号 |
题目：3,4,6,12 |
| 1 |
((6 × 3) − 12) × 4 |
| 2 |
((6 + 3) × 4) − 12 |
| 3 |
(12 − 4) × (6 − 3) |
| 4 |
12 + (4 × (6 − 3)) |
| 5 |
((12 + 6) ÷ 3) × 4 |
| 6 |
((12 × 4) ÷ 6) × 3 |
| 7 |
((12 × 4) × 3) ÷ 6 |
| 8 |
((12 × 3) × 4) ÷ 6 |
| 9 |
((12 + 6) × 4) ÷ 3 |
| 10 |
((12 × 3) ÷ 6) × 4 |
| 11 |
(12 × 4) ÷ (6 ÷ 3) |
| 12 |
(4 × (12 ÷ 6)) × 3 |
| 13 |
(4 × 3) × (12 ÷ 6) |
| 14 |
(12 × (4 × 3)) ÷ 6 |
| 15 |
(12 ÷ (6 ÷ 3)) × 4 |
| 16 |
(3 × (12 ÷ 6)) × 4 |
| 17 |
12 × (4 ÷ (6 ÷ 3)) |
| 18 |
12 × (4 − (6 ÷ 3)) |
| 19 |
12 × ((4 × 3) ÷ 6) |
| 20 |
(12 × (4 ÷ 6)) × 3 |
| 21 |
(3 ÷ (6 ÷ 12)) × 4 |
| 22 |
(12 + 6) ÷ (3 ÷ 4) |
| 23 |
(12 + 6) × (4 ÷ 3) |
| 24 |
(12 × (3 ÷ 6)) × 4 |
| 25 |
(12 × 3) × (4 ÷ 6) |
| 26 |
(12 ÷ (6 ÷ 4)) × 3 |
| 27 |
(12 × 4) × (3 ÷ 6) |
| 28 |
(4 ÷ (6 ÷ 12)) × 3 |
| 29 |
(4 × 3) ÷ (6 ÷ 12) |
| 30 |
(12 × 3) ÷ (6 ÷ 4) |
| 31 |
12 × (4 × (3 ÷ 6)) |
| 32 |
12 × (3 ÷ (6 ÷ 4)) |
| 33 |
3 ÷ (6 ÷ (12 × 4)) |
| 34 |
12 ÷ (6 ÷ (4 × 3)) |
| 35 |
4 ÷ ((6 ÷ 12) ÷ 3) |
| 36 |
4 ÷ (3 ÷ (12 + 6)) |
| 37 |
12 × (3 × (4 ÷ 6)) |
| 38 |
12 ÷ ((6 ÷ 3) ÷ 4) |
| 39 |
12 ÷ ((6 ÷ 4) ÷ 3) |
| 40 |
4 ÷ ((6 ÷ 3) ÷ 12) |
| 41 |
4 ÷ (6 ÷ (12 × 3)) |
| 42 |
3 ÷ ((6 ÷ 12) ÷ 4) |
| 43 |
3 ÷ ((6 ÷ 4) ÷ 12) |