24点题目:使用数字 7 7 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34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
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| 序号 |
题目:7,7,11,13 |
| 1 |
((13 + 7) − 7) + 11 |
| 2 |
((11 + 7) + 13) − 7 |
| 3 |
((13 + 7) + 11) − 7 |
| 4 |
((13 + 11) − 7) + 7 |
| 5 |
((13 + 11) + 7) − 7 |
| 6 |
(11 + 7) + (13 − 7) |
| 7 |
(13 + 11) − (7 − 7) |
| 8 |
(13 − (7 − 7)) + 11 |
| 9 |
(13 + (7 − 7)) + 11 |
| 10 |
(11 + (13 − 7)) + 7 |
| 11 |
(13 + 11) + (7 − 7) |
| 12 |
(13 − 7) × (11 − 7) |
| 13 |
(13 + (11 − 7)) + 7 |
| 14 |
(13 + 7) + (11 − 7) |
| 15 |
(7 + (13 − 7)) + 11 |
| 16 |
13 + (11 − (7 − 7)) |
| 17 |
13 + ((11 + 7) − 7) |
| 18 |
13 + (7 + (11 − 7)) |
| 19 |
13 + (11 + (7 − 7)) |
| 20 |
((13 + 11) × 7) ÷ 7 |
| 21 |
((13 × 7) ÷ 7) + 11 |
| 22 |
(13 × (7 ÷ 7)) + 11 |
| 23 |
(13 + 11) ÷ (7 ÷ 7) |
| 24 |
(13 + 11) × (7 ÷ 7) |
| 25 |
(13 ÷ (7 ÷ 7)) + 11 |
| 26 |
13 + (11 ÷ (7 ÷ 7)) |
| 27 |
13 + ((11 × 7) ÷ 7) |
| 28 |
13 + (11 × (7 ÷ 7)) |
| 29 |
(7 × (13 ÷ 7)) + 11 |
| 30 |
(7 ÷ (7 ÷ 13)) + 11 |
| 31 |
13 + (7 × (11 ÷ 7)) |
| 32 |
13 + (7 ÷ (7 ÷ 11)) |
| 33 |
7 × ((13 + 11) ÷ 7) |
| 34 |
7 ÷ (7 ÷ (13 + 11)) |