24点题目：使用数字 3 8 12 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49个解（使用交换律变换后算一个解）,
难度系数是1星
★☆☆☆☆☆☆☆【
最简单入门24点题目
】。
| 序号 |
题目：3,8,12,12 |
| 1 |
((8 × 3) + 12) − 12 |
| 2 |
((12 + 8) − 12) × 3 |
| 3 |
(8 × 3) + (12 − 12) |
| 4 |
(12 − (12 − 8)) × 3 |
| 5 |
(8 − (12 − 12)) × 3 |
| 6 |
(8 × 3) − (12 − 12) |
| 7 |
(8 + (12 − 12)) × 3 |
| 8 |
12 + ((12 − 8) × 3) |
| 9 |
12 + ((8 × 3) − 12) |
| 10 |
8 × (3 + (12 − 12)) |
| 11 |
8 × ((12 + 3) − 12) |
| 12 |
8 × (3 − (12 − 12)) |
| 13 |
8 × (12 − (12 − 3)) |
| 14 |
((12 × 3) × 8) ÷ 12 |
| 15 |
((12 × 8) × 3) ÷ 12 |
| 16 |
((8 × 3) × 12) ÷ 12 |
| 17 |
((12 × 8) ÷ 12) × 3 |
| 18 |
(12 + 8) + (12 ÷ 3) |
| 19 |
(8 ÷ (12 ÷ 12)) × 3 |
| 20 |
(8 × 3) ÷ (12 ÷ 12) |
| 21 |
(12 + (12 ÷ 3)) + 8 |
| 22 |
(8 × 3) × (12 ÷ 12) |
| 23 |
(12 × 8) ÷ (12 ÷ 3) |
| 24 |
(8 × (12 ÷ 12)) × 3 |
| 25 |
12 × ((8 × 3) ÷ 12) |
| 26 |
8 × (3 ÷ (12 ÷ 12)) |
| 27 |
8 × (12 ÷ (12 ÷ 3)) |
| 28 |
8 × ((12 × 3) ÷ 12) |
| 29 |
12 + (8 + (12 ÷ 3)) |
| 30 |
12 × (8 ÷ (12 ÷ 3)) |
| 31 |
8 × (3 × (12 ÷ 12)) |
| 32 |
(12 × (8 ÷ 12)) × 3 |
| 33 |
(12 ÷ (12 ÷ 8)) × 3 |
| 34 |
(12 × 8) × (3 ÷ 12) |
| 35 |
(12 × 3) × (8 ÷ 12) |
| 36 |
(12 × 3) ÷ (12 ÷ 8) |
| 37 |
12 ÷ (12 ÷ (8 × 3)) |
| 38 |
8 ÷ (12 ÷ (12 × 3)) |
| 39 |
3 ÷ (12 ÷ (12 × 8)) |
| 40 |
8 ÷ ((12 ÷ 3) ÷ 12) |
| 41 |
12 × (3 × (8 ÷ 12)) |
| 42 |
3 ÷ ((12 ÷ 12) ÷ 8) |
| 43 |
12 × (8 × (3 ÷ 12)) |
| 44 |
12 ÷ ((12 ÷ 3) ÷ 8) |
| 45 |
12 ÷ ((12 ÷ 8) ÷ 3) |
| 46 |
8 ÷ ((12 ÷ 12) ÷ 3) |
| 47 |
8 × (12 × (3 ÷ 12)) |
| 48 |
12 × (3 ÷ (12 ÷ 8)) |
| 49 |
3 ÷ ((12 ÷ 8) ÷ 12) |