24点 1 2 3 4 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 1 2 3 4，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 52 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：1,2,3,4 的解法
1 ((4 × 3) × 2) × 1
2 ((3 × 2) × 4) × 1
3 ((4 × 1) × 2) × 3
4 ((3 + 1) + 2) × 4
5 ((4 × 3) × 1) × 2
6 ((4 × 1) × 3) × 2
7 ((4 × 2) × 1) × 3
8 ((3 × 1) × 2) × 4
9 ((4 × 2) × 3) × 1
10 ((3 × 2) × 1) × 4
11 ((3 + 2) + 1) × 4
12 (4 × (2 × 1)) × 3
13 (4 × 3) × (2 × 1)
14 (3 + (2 + 1)) × 4
15 (3 × 2) × (4 × 1)
16 (4 × (3 × 1)) × 2
17 (4 + 2) × (3 + 1)
18 (3 × (2 × 1)) × 4
19 (4 × 2) × (3 × 1)
20 ((3 × 2) × 4) ÷ 1
21 ((4 ÷ 1) × 2) × 3
22 ((4 × 3) ÷ 1) × 2
23 ((3 × 2) ÷ 1) × 4
24 ((4 × 2) ÷ 1) × 3
25 ((4 × 2) × 3) ÷ 1
26 ((4 × 3) × 2) ÷ 1
27 ((4 ÷ 1) × 3) × 2
28 ((3 ÷ 1) × 2) × 4
29 (4 × 3) × (2 ÷ 1)
30 (4 × (3 ÷ 1)) × 2
31 (3 × 2) × (4 ÷ 1)
32 (4 × 2) × (3 ÷ 1)
33 (3 × (2 ÷ 1)) × 4
34 (4 × (2 ÷ 1)) × 3
35 (2 ÷ (1 ÷ 4)) × 3
36 (4 × 2) ÷ (1 ÷ 3)
37 (4 ÷ (1 ÷ 2)) × 3
38 (2 ÷ (1 ÷ 3)) × 4
39 (3 ÷ (1 ÷ 4)) × 2
40 (4 × 3) ÷ (1 ÷ 2)
41 (4 ÷ (1 ÷ 3)) × 2
42 (3 ÷ (1 ÷ 2)) × 4
43 (3 × 2) ÷ (1 ÷ 4)
44 2 ÷ ((1 ÷ 4) ÷ 3)
45 4 ÷ ((1 ÷ 2) ÷ 3)
46 3 ÷ ((1 ÷ 2) ÷ 4)
47 2 ÷ ((1 ÷ 3) ÷ 4)
48 2 ÷ (1 ÷ (4 × 3))
49 3 ÷ (1 ÷ (4 × 2))
50 3 ÷ ((1 ÷ 4) ÷ 2)
51 4 ÷ ((1 ÷ 3) ÷ 2)
52 4 ÷ (1 ÷ (3 × 2))