4,5,7,8怎样得24,?每个数字只能用一次

答案:4 悬赏:10 手机版

解决时间 2021-02-27 08:42

提问者网友：寂寞撕碎了回忆
2021-02-27 00:12

最佳答案

五星知识达人网友：不想翻身的咸鱼
2021-02-27 00:41

5*7-(4+7)=24
4*(5-7+8)=24
(4+8)(7-5)=24
8*(5+7)/4=24

全部回答

1楼网友：走死在岁月里
2021-02-27 04:14

1: 4 + 5 + 7 + 8
2: (4 + 5) + 7 + 8
3: (4 + 5 + 7) + 8
4: ((4 + 5) + 7) + 8
5: (4 + (5 + 7)) + 8
6: 4 + (5 + 7) + 8
7: 4 + (5 + 7 + 8)
8: 4 + ((5 + 7) + 8)
9: 4 + (5 + (7 + 8))
10: 4 + 5 +(7 + 8)
11: (4 + 5) + (7 + 8)
12: 4 × (5 - 7 + 8)
13: 4 × ((5 - 7) + 8)
14: 4 × (5 - (7 - 8))
15: 4 + 5 + 8 + 7
16: (4 + 5) + 8 + 7
17: (4 + 5 + 8) + 7
18: ((4 + 5) + 8) + 7
19: (4 + (5 + 8)) + 7
20: 4 + (5 + 8) + 7
21: 4 + (5 + 8 + 7)
22: 4 + ((5 + 8) + 7)
23: 4 + (5 + (8 + 7))
24: 4 + 5 +(8 + 7)
25: (4 + 5) + (8 + 7)
26: 4 × (5 + 8 - 7)
27: 4 × ((5 + 8) - 7)
28: 4 × (5 + (8 - 7))
29: 4 + 7 + 5 + 8
30: (4 + 7) + 5 + 8
31: (4 + 7 + 5) + 8
32: ((4 + 7) + 5) + 8
33: (4 + (7 + 5)) + 8
34: 4 + (7 + 5) + 8
35: 4 + (7 + 5 + 8)
36: 4 + ((7 + 5) + 8)
37: 4 + (7 + (5 + 8))
38: 4 + 7 +(5 + 8)
39: (4 + 7) + (5 + 8)
40: 4 + 7 + 8 + 5
41: (4 + 7) + 8 + 5
42: (4 + 7 + 8) + 5
43: ((4 + 7) + 8) + 5
44: (4 + (7 + 8)) + 5
45: 4 + (7 + 8) + 5
46: 4 + (7 + 8 + 5)
47: 4 + ((7 + 8) + 5)
48: 4 + (7 + (8 + 5))
49: 4 + 7 +(8 + 5)
50: (4 + 7) + (8 + 5)
51: 4 + 8 + 5 + 7
52: (4 + 8) + 5 + 7
53: (4 + 8 + 5) + 7
54: ((4 + 8) + 5) + 7
55: (4 + (8 + 5)) + 7
56: 4 + (8 + 5) + 7
57: 4 + (8 + 5 + 7)
58: 4 + ((8 + 5) + 7)
59: 4 + (8 + (5 + 7))
60: 4 + 8 +(5 + 7)
61: (4 + 8) + (5 + 7)
62: 4 × (8 + 5 - 7)
63: 4 × ((8 + 5) - 7)
64: 4 × (8 + (5 - 7))
65: 4 + 8 + 7 + 5
66: (4 + 8) + 7 + 5
67: (4 + 8 + 7) + 5
68: ((4 + 8) + 7) + 5
69: (4 + (8 + 7)) + 5
70: 4 + (8 + 7) + 5
71: 4 + (8 + 7 + 5)
72: 4 + ((8 + 7) + 5)
73: 4 + (8 + (7 + 5))
74: 4 + 8 +(7 + 5)
75: (4 + 8) + (7 + 5)
76: (4 + 8) × (7 - 5)
77: 4 × (8 - 7 + 5)
78: 4 × ((8 - 7) + 5)
79: 4 × (8 - (7 - 5))
80: 5 + 4 + 7 + 8
81: (5 + 4) + 7 + 8
82: (5 + 4 + 7) + 8
83: ((5 + 4) + 7) + 8
84: (5 + (4 + 7)) + 8
85: 5 + (4 + 7) + 8
86: 5 + (4 + 7 + 8)
87: 5 + ((4 + 7) + 8)
88: 5 + (4 + (7 + 8))
89: 5 + 4 +(7 + 8)
90: (5 + 4) + (7 + 8)
91: 5 + 4 + 8 + 7
92: (5 + 4) + 8 + 7
93: (5 + 4 + 8) + 7
94: ((5 + 4) + 8) + 7
95: (5 + (4 + 8)) + 7
96: 5 + (4 + 8) + 7
97: 5 + (4 + 8 + 7)
98: 5 + ((4 + 8) + 7)
99: 5 + (4 + (8 + 7))
100: 5 + 4 +(8 + 7)
101: (5 + 4) + (8 + 7)
102: 5 + 7 + 4 + 8
103: (5 + 7) + 4 + 8
104: (5 + 7 + 4) + 8
105: ((5 + 7) + 4) + 8
106: (5 + (7 + 4)) + 8
107: 5 + (7 + 4) + 8
108: 5 + (7 + 4 + 8)
109: 5 + ((7 + 4) + 8)
110: 5 + (7 + (4 + 8))

2楼网友：一把行者刀
2021-02-27 03:10

4+5+7+8

3楼网友：不想翻身的咸鱼
2021-02-27 02:15

7-5=2 8-2=6 4*6=24

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