24点题目：使用数字 2 4 6 8，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3星
★★★☆☆☆☆☆【
中等偏易24点题目
】。
| 序号 |
题目：2,4,6,8 |
| 1 |
((6 × 2) + 4) + 8 |
| 2 |
((8 × 4) − 6) − 2 |
| 3 |
((8 + 6) × 2) − 4 |
| 4 |
((8 × 4) − 2) − 6 |
| 5 |
((6 × 2) + 8) + 4 |
| 6 |
((6 + 2) × 4) − 8 |
| 7 |
(4 × (6 − 2)) + 8 |
| 8 |
(8 + 4) + (6 × 2) |
| 9 |
(8 × 4) − (6 + 2) |
| 10 |
(6 × 2) + (8 + 4) |
| 11 |
((8 × 6) × 2) ÷ 4 |
| 12 |
((8 × 6) ÷ 4) × 2 |
| 13 |
((6 × 2) × 8) ÷ 4 |
| 14 |
((8 × 2) × 6) ÷ 4 |
| 15 |
(8 × 6) ÷ (4 − 2) |
| 16 |
(8 × 6) ÷ (4 ÷ 2) |
| 17 |
(6 × 2) × (8 ÷ 4) |
| 18 |
(6 × (8 ÷ 4)) × 2 |
| 19 |
8 × (6 ÷ (4 ÷ 2)) |
| 20 |
6 × (2 × (8 ÷ 4)) |
| 21 |
6 × ((8 × 2) ÷ 4) |
| 22 |
6 × (8 ÷ (4 ÷ 2)) |
| 23 |
6 × (2 + (8 ÷ 4)) |
| 24 |
8 × ((6 × 2) ÷ 4) |
| 25 |
8 × (6 ÷ (4 − 2)) |
| 26 |
6 × (8 ÷ (4 − 2)) |
| 27 |
(8 × 6) × (2 ÷ 4) |
| 28 |
(8 × 2) × (6 ÷ 4) |
| 29 |
(8 × 2) ÷ (4 ÷ 6) |
| 30 |
(8 ÷ (4 ÷ 6)) × 2 |
| 31 |
(6 ÷ (4 ÷ 8)) × 2 |
| 32 |
(6 × 2) ÷ (4 ÷ 8) |
| 33 |
(8 × (6 ÷ 4)) × 2 |
| 34 |
8 ÷ ((4 − 2) ÷ 6) |
| 35 |
6 ÷ ((4 ÷ 2) ÷ 8) |
| 36 |
8 ÷ ((4 ÷ 6) ÷ 2) |
| 37 |
8 × (2 × (6 ÷ 4)) |
| 38 |
8 ÷ ((4 ÷ 2) ÷ 6) |
| 39 |
8 × (6 × (2 ÷ 4)) |
| 40 |
6 × (2 ÷ (4 ÷ 8)) |
| 41 |
6 ÷ (4 ÷ (8 × 2)) |
| 42 |
6 × (8 × (2 ÷ 4)) |
| 43 |
6 ÷ ((4 − 2) ÷ 8) |
| 44 |
2 ÷ ((4 ÷ 6) ÷ 8) |
| 45 |
6 ÷ ((4 ÷ 8) ÷ 2) |
| 46 |
2 ÷ (4 ÷ (8 × 6)) |
| 47 |
8 ÷ (4 ÷ (6 × 2)) |
| 48 |
2 ÷ ((4 ÷ 8) ÷ 6) |
| 49 |
8 × (2 ÷ (4 ÷ 6)) |