24点 2 2 8 12 解题详情
24点在线计算 · 全部题目与解法
24点题目:使用数字 2 2 8 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 38 个解(使用交换律变换后算一个解),难度系数 ★★☆☆☆☆☆☆ 【 简单24点题目 】
本题共有 38 个解(使用交换律变换后算一个解),难度系数 ★★☆☆☆☆☆☆ 【 简单24点题目 】
| 序号 | 题目:2,2,8,12 的解法 | |
|---|---|---|
| 1 | ((12 + 2) + 8) + 2 | |
| 2 | ((12 + 8) + 2) + 2 | |
| 3 | ((12 + 2) + 2) + 8 | |
| 4 | (12 + (8 + 2)) + 2 | |
| 5 | (12 + (2 × 2)) + 8 | |
| 6 | (12 + 8) + (2 × 2) | |
| 7 | (12 + 2) + (8 + 2) | |
| 8 | (12 + 8) + (2 + 2) | |
| 9 | (12 + (2 + 2)) + 8 | |
| 10 | 12 + (8 + (2 + 2)) | |
| 11 | 12 + ((8 + 2) + 2) | |
| 12 | 12 + ((8 − 2) × 2) | |
| 13 | 12 + (8 + (2 × 2)) | |
| 14 | ((12 × 8) ÷ 2) ÷ 2 | |
| 15 | (12 × 8) ÷ (2 + 2) | |
| 16 | (8 × (12 ÷ 2)) ÷ 2 | |
| 17 | (12 × (8 ÷ 2)) ÷ 2 | |
| 18 | (12 × 8) ÷ (2 × 2) | |
| 19 | (12 ÷ 2) × (8 ÷ 2) | |
| 20 | 8 × (12 ÷ (2 + 2)) | |
| 21 | 12 × ((8 ÷ 2) − 2) | |
| 22 | 12 × (8 ÷ (2 × 2)) | |
| 23 | 12 × ((8 ÷ 2) ÷ 2) | |
| 24 | 8 × (12 ÷ (2 × 2)) | |
| 25 | 8 × ((12 ÷ 2) ÷ 2) | |
| 26 | 12 × (8 ÷ (2 + 2)) | |
| 27 | (8 ÷ 2) ÷ (2 ÷ 12) | |
| 28 | (8 ÷ (2 ÷ 12)) ÷ 2 | |
| 29 | (12 ÷ 2) ÷ (2 ÷ 8) | |
| 30 | (12 ÷ (2 ÷ 8)) ÷ 2 | |
| 31 | 12 ÷ ((2 + 2) ÷ 8) | |
| 32 | 8 ÷ ((2 + 2) ÷ 12) | |
| 33 | 8 ÷ (2 ÷ (12 ÷ 2)) | |
| 34 | 8 ÷ ((2 × 2) ÷ 12) | |
| 35 | 12 ÷ (2 × (2 ÷ 8)) | |
| 36 | 8 ÷ (2 × (2 ÷ 12)) | |
| 37 | 12 ÷ (2 ÷ (8 ÷ 2)) | |
| 38 | 12 ÷ ((2 × 2) ÷ 8) | |