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