24点题目：使用数字 1 1 11 13，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58个解（使用交换律变换后算一个解）,
难度系数是1星
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最简单入门24点题目
】。
| 序号 |
题目：1,1,11,13 |
| 1 |
((13 + 1) + 11) − 1 |
| 2 |
((13 × 1) × 1) + 11 |
| 3 |
((13 + 11) + 1) − 1 |
| 4 |
((13 + 11) × 1) × 1 |
| 5 |
((13 + 11) − 1) + 1 |
| 6 |
((13 + 1) − 1) + 11 |
| 7 |
((13 × 1) + 11) × 1 |
| 8 |
((13 − 1) + 1) + 11 |
| 9 |
((13 − 1) + 11) + 1 |
| 10 |
(13 + 1) + (11 − 1) |
| 11 |
(13 × (1 × 1)) + 11 |
| 12 |
(13 + 11) + (1 − 1) |
| 13 |
(13 × 1) + (11 × 1) |
| 14 |
(13 + 11) − (1 − 1) |
| 15 |
(11 + 1) + (13 − 1) |
| 16 |
(13 + (11 × 1)) × 1 |
| 17 |
(13 − (1 − 1)) + 11 |
| 18 |
(13 − 1) + (11 + 1) |
| 19 |
(13 + (11 + 1)) − 1 |
| 20 |
(13 + (11 − 1)) + 1 |
| 21 |
(13 + (1 − 1)) + 11 |
| 22 |
(13 + 11) × (1 × 1) |
| 23 |
13 + (11 + (1 − 1)) |
| 24 |
13 + (11 − (1 − 1)) |
| 25 |
13 + ((11 × 1) × 1) |
| 26 |
13 + ((11 − 1) + 1) |
| 27 |
13 + (11 × (1 × 1)) |
| 28 |
13 + ((11 + 1) − 1) |
| 29 |
((13 ÷ 1) ÷ 1) + 11 |
| 30 |
((13 × 1) ÷ 1) + 11 |
| 31 |
((13 + 11) ÷ 1) × 1 |
| 32 |
((13 ÷ 1) + 11) ÷ 1 |
| 33 |
((13 × 1) + 11) ÷ 1 |
| 34 |
((13 + 11) ÷ 1) ÷ 1 |
| 35 |
((13 ÷ 1) × 1) + 11 |
| 36 |
((13 ÷ 1) + 11) × 1 |
| 37 |
((13 + 11) × 1) ÷ 1 |
| 38 |
(13 + (11 ÷ 1)) ÷ 1 |
| 39 |
(13 + (11 × 1)) ÷ 1 |
| 40 |
(13 + 11) ÷ (1 × 1) |
| 41 |
(13 ÷ 1) + (11 × 1) |
| 42 |
(13 ÷ (1 ÷ 1)) + 11 |
| 43 |
(13 ÷ 1) + (11 ÷ 1) |
| 44 |
(13 × (1 ÷ 1)) + 11 |
| 45 |
(13 + 11) × (1 ÷ 1) |
| 46 |
(13 × 1) + (11 ÷ 1) |
| 47 |
(13 + (11 ÷ 1)) × 1 |
| 48 |
(13 + 11) ÷ (1 ÷ 1) |
| 49 |
(13 ÷ (1 × 1)) + 11 |
| 50 |
13 + ((11 × 1) ÷ 1) |
| 51 |
13 + ((11 ÷ 1) ÷ 1) |
| 52 |
13 + (11 × (1 ÷ 1)) |
| 53 |
13 + (11 ÷ (1 × 1)) |
| 54 |
13 + ((11 ÷ 1) × 1) |
| 55 |
13 + (11 ÷ (1 ÷ 1)) |
| 56 |
(1 ÷ (1 ÷ 13)) + 11 |
| 57 |
13 + (1 ÷ (1 ÷ 11)) |
| 58 |
1 ÷ (1 ÷ (13 + 11)) |