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