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