24点的题目：“5，9，7，2”四个数用加减乘除凑24

答案:5 悬赏:70

解决时间 2021-02-19 01:36

提问者网友：呆萌心雨
2021-02-18 13:10

24点的题目：“5，9，7，2”四个数组成24

最佳答案

二级知识专家网友：青灯壁纸妹
2021-02-18 14:45

1: 5 × 7 -(9 + 2)
2: (5 × 7) - (9 + 2)
3: 5 × 7 - 9 - 2
4: (5 × 7) - 9 - 2
5: (5 × 7 - 9) - 2
6: ((5 × 7) - 9) - 2
7: 5 × 7 -(2 + 9)
8: (5 × 7) - (2 + 9)
9: 5 × 7 - 2 - 9
10: (5 × 7) - 2 - 9
11: (5 × 7 - 2) - 9
12: ((5 × 7) - 2) - 9
13: 7 × 5 -(9 + 2)
14: (7 × 5) - (9 + 2)
15: 7 × 5 - 9 - 2
16: (7 × 5) - 9 - 2
17: (7 × 5 - 9) - 2
18: ((7 × 5) - 9) - 2
19: 7 × 5 -(2 + 9)
20: (7 × 5) - (2 + 9)
21: 7 × 5 - 2 - 9
22: (7 × 5) - 2 - 9
23: (7 × 5 - 2) - 9
24: ((7 × 5) - 2) - 9

全部回答

1楼网友：随心随缘不随便
2021-02-18 19:21

5*7-9-2

2楼网友：如果这是命
2021-02-18 18:56

[(-5)×(-13)+7]÷3=24，希望帮到你！望采纳，谢谢！~

3楼网友：瘾与深巷
2021-02-18 17:37

5 × 7 -(9 + 2) (5 × 7) - (9 + 2) (5 × 7) - 9 - 2 ((5 × 7) - 9) - 2 (5 × 7) - (2 + 9) (5 × 7) - 2 - 9 (5 × 7 - 2) - 9 7 × 5 -(9 + 2) (7 × 5) - (9 + 2) (7 × 5) - 9 - 2 ((7 × 5) - 9) - 2 7 × 5 -(2 + 9) (7 × 5) - (2 + 9) 7 × 5 - 2 - 9 (7 × 5) - 2 - 9 (7 × 5 - 2) - 9 ((7 × 5) - 2) - 9

4楼网友：寂寞的炫耀
2021-02-18 16:22

1: 5 × 7 -(9 + 2) 2: (5 × 7) - (9 + 2) 3: 5 × 7 - 9 - 2 4: (5 × 7) - 9 - 2 5: (5 × 7 - 9) - 2 6: ((5 × 7) - 9) - 2 7: 5 × 7 -(2 + 9) 8: (5 × 7) - (2 + 9) 9: 5 × 7 - 2 - 9 10: (5 × 7) - 2 - 9 11: (5 × 7 - 2) - 9 12: ((5 × 7) - 2) - 9 13: 7 × 5 -(9 + 2) 14: (7 × 5) - (9 + 2) 15: 7 × 5 - 9 - 2 16: (7 × 5) - 9 - 2 17: (7 × 5 - 9) - 2 18: ((7 × 5) - 9) - 2 19: 7 × 5 -(2 + 9) 20: (7 × 5) - (2 + 9) 21: 7 × 5 - 2 - 9 22: (7 × 5) - 2 - 9 23: (7 × 5 - 2) - 9 24: ((7 × 5) - 2) - 9就这样

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