Question

将3,-5，-7，-13这四个数进行加减乘除，使其结果等于二十四，请写出三种不同的算式。

Answer 1

[(-5)*(-13)-(-7)]/3=24

Answer 2

1: 3 * ((4 + -6) + 10) = 24
2: 3 * (4 + (-6 + 10)) = 24
3: 3 * ((4 + 10) + -6) = 24
4: 3 * (4 + (10 + -6)) = 24
5: 3 * ((-6 + 4) + 10) = 24
6: 3 * (-6 + (4 + 10)) = 24
7: 3 * ((-6 + 10) + 4) = 24
8: 3 * (-6 + (10 + 4)) = 24
9: (3 * (10 - 4)) - -6 = 24
10: 3 * ((10 + 4) + -6) = 24
11: 3 * (10 + (4 + -6)) = 24
12: 3 * ((10 + -6) + 4) = 24
13: 3 * (10 + (-6 + 4)) = 24
14: 4 - ((-6 / 3) * 10) = 24
15: 4 - (-6 / (3 / 10)) = 24
16: 4 - (-6 * (10 / 3)) = 24
17: 4 - ((-6 * 10) / 3) = 24
18: ((4 + -6) + 10) * 3 = 24
19: (4 + (-6 + 10)) * 3 = 24
20: 4 - ((10 / 3) * -6) = 24
21: 4 - (10 / (3 / -6)) = 24
22: 4 - (10 * (-6 / 3)) = 24
23: 4 - ((10 * -6) / 3) = 24
24: ((4 + 10) + -6) * 3 = 24
25: (4 + (10 + -6)) * 3 = 24
26: ((-6 + 4) + 10) * 3 = 24
27: (-6 + (4 + 10)) * 3 = 24
28: ((-6 + 10) + 4) * 3 = 24
29: (-6 + (10 + 4)) * 3 = 24
30: 10 - ((3 * -6) + 4) = 24
31: (10 - (3 * -6)) - 4 = 24
32: 10 - (4 + (3 * -6)) = 24
33: ((10 - 4) * 3) - -6 = 24
34: (10 - 4) - (3 * -6) = 24
35: 10 - (4 + (-6 * 3)) = 24
36: (10 - 4) - (-6 * 3) = 24
37: ((10 + 4) + -6) * 3 = 24
38: (10 + (4 + -6)) * 3 = 24
39: 10 - ((-6 * 3) + 4) = 24
40: (10 - (-6 * 3)) - 4 = 24
41: ((10 + -6) + 4) * 3 = 24
42: (10 + (-6 + 4)) * 3 = 24