用3,4,5,7写算式使结果=24

用3,4,5,7写算式使结果=24
用3,4,5,7写算式使结果=24

用3,4,5,7写算式使结果=24
（7-5）×3×4=24

3*4*(7-5)=24

1: 3 × 4 + 5 + 7
2: (3 × 4) + 5 + 7
3: (3 × 4 + 5) + 7
4: ((3 × 4) + 5) + 7
5: 3 × 4 +(5 + 7)
6: (3 × 4) + (5 + 7)
7: 3 × 4 + 7 + 5
8: (3 × 4) + 7 + 5
9: (3 × ...

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1: 3 × 4 + 5 + 7
2: (3 × 4) + 5 + 7
3: (3 × 4 + 5) + 7
4: ((3 × 4) + 5) + 7
5: 3 × 4 +(5 + 7)
6: (3 × 4) + (5 + 7)
7: 3 × 4 + 7 + 5
8: (3 × 4) + 7 + 5
9: (3 × 4 + 7) + 5
10: ((3 × 4) + 7) + 5
11: 3 × 4 +(7 + 5)
12: (3 × 4) + (7 + 5)
13: 3 × (4 × (7 - 5))
14: 3 × 4 ×(7 - 5)
15: (3 × 4) × (7 - 5)
16: 3 × (5 - 4 + 7)
17: 3 × ((5 - 4) + 7)
18: 3 × (5 - (4 - 7))
19: (3 + 5) × (7 - 4)
20: 3 × (5 + 7 - 4)
21: 3 × ((5 + 7) - 4)
22: 3 × (5 + (7 - 4))
23: 3 × (7 - 4 + 5)
24: 3 × ((7 - 4) + 5)
25: 3 × (7 - (4 - 5))
26: 3 × (7 + 5 - 4)
27: 3 × ((7 + 5) - 4)
28: 3 × (7 + (5 - 4))
29: (3 × (7 - 5)) × 4
30: 3 × (7 - 5) × 4
31: 3 × ((7 - 5) × 4)
32: 4 × 3 + 5 + 7
33: (4 × 3) + 5 + 7
34: (4 × 3 + 5) + 7
35: ((4 × 3) + 5) + 7
36: 4 × 3 +(5 + 7)
37: (4 × 3) + (5 + 7)
38: 4 - (3 - 7) × 5
39: 4 - ((3 - 7) × 5)
40: 4 × 3 + 7 + 5
41: (4 × 3) + 7 + 5
42: (4 × 3 + 7) + 5
43: ((4 × 3) + 7) + 5
44: 4 × 3 +(7 + 5)
45: (4 × 3) + (7 + 5)
46: 4 × (3 × (7 - 5))
47: 4 × 3 ×(7 - 5)
48: (4 × 3) × (7 - 5)
49: 4 - (5 × (3 - 7))
50: 4 - 5 ×(3 - 7)
51: 4 × 5 - 3 + 7
52: (4 × 5) - 3 + 7
53: (4 × 5 - 3) + 7
54: ((4 × 5) - 3) + 7
55: 4 × 5 -(3 - 7)
56: (4 × 5) - (3 - 7)
57: 4 + (5 × (7 - 3))
58: 4 + 5 ×(7 - 3)
59: 4 × 5 + 7 - 3
60: (4 × 5) + 7 - 3
61: (4 × 5 + 7) - 3
62: ((4 × 5) + 7) - 3
63: 4 × 5 +(7 - 3)
64: (4 × 5) + (7 - 3)
65: 4 + (7 - 3) × 5
66: 4 + ((7 - 3) × 5)
67: (4 × (7 - 5)) × 3
68: 4 × (7 - 5) × 3
69: 4 × ((7 - 5) × 3)
70: 5 + 3 × 4 + 7
71: (5 + 3 × 4) + 7
72: (5 + (3 × 4)) + 7
73: 5 + (3 × 4) + 7
74: 5 + (3 × 4 + 7)
75: 5 + ((3 × 4) + 7)
76: (5 + 3) × (7 - 4)
77: 5 + 4 × 3 + 7
78: (5 + 4 × 3) + 7
79: (5 + (4 × 3)) + 7
80: 5 + (4 × 3) + 7
81: 5 + (4 × 3 + 7)
82: 5 + ((4 × 3) + 7)
83: 5 × 4 - 3 + 7
84: (5 × 4) - 3 + 7
85: (5 × 4 - 3) + 7
86: ((5 × 4) - 3) + 7
87: 5 × 4 -(3 - 7)
88: (5 × 4) - (3 - 7)
89: (5 - 4 + 7) × 3
90: ((5 - 4) + 7) × 3
91: (5 - (4 - 7)) × 3
92: 5 × 4 + 7 - 3
93: (5 × 4) + 7 - 3
94: (5 × 4 + 7) - 3
95: ((5 × 4) + 7) - 3
96: 5 × 4 +(7 - 3)
97: (5 × 4) + (7 - 3)
98: 5 + 7 + 3 × 4
99: (5 + 7) + 3 × 4
100: 5 + (7 + 3 × 4)
101: 5 + (7 + (3 × 4))
102: 5 + 7 +(3 × 4)
103: (5 + 7) + (3 × 4)
104: (5 × (7 - 3)) + 4
105: 5 × (7 - 3) + 4
106: 5 + 7 + 4 × 3
107: (5 + 7) + 4 × 3
108: 5 + (7 + 4 × 3)
109: 5 + (7 + (4 × 3))
110: 5 + 7 +(4 × 3)
111: (5 + 7) + (4 × 3)
112: (5 + 7 - 4) × 3
113: ((5 + 7) - 4) × 3
114: (5 + (7 - 4)) × 3
115: 7 + 3 × 4 + 5
116: (7 + 3 × 4) + 5
117: (7 + (3 × 4)) + 5
118: 7 + (3 × 4) + 5
119: 7 + (3 × 4 + 5)
120: 7 + ((3 × 4) + 5)
121: 7 - 3 + 4 × 5
122: (7 - 3) + 4 × 5
123: 7 - 3 +(4 × 5)
124: (7 - 3) + (4 × 5)
125: 7 - (3 - 4 × 5)
126: 7 - (3 - (4 × 5))
127: 7 - 3 + 5 × 4
128: (7 - 3) + 5 × 4
129: 7 - 3 +(5 × 4)
130: (7 - 3) + (5 × 4)
131: 7 - (3 - 5 × 4)
132: 7 - (3 - (5 × 4))
133: (7 - 3) × 5 + 4
134: ((7 - 3) × 5) + 4
135: 7 + 4 × 3 + 5
136: (7 + 4 × 3) + 5
137: (7 + (4 × 3)) + 5
138: 7 + (4 × 3) + 5
139: 7 + (4 × 3 + 5)
140: 7 + ((4 × 3) + 5)
141: (7 - 4) × (3 + 5)
142: 7 + 4 × 5 - 3
143: (7 + 4 × 5) - 3
144: (7 + (4 × 5)) - 3
145: 7 + (4 × 5) - 3
146: 7 + (4 × 5 - 3)
147: 7 + ((4 × 5) - 3)
148: (7 - 4 + 5) × 3
149: ((7 - 4) + 5) × 3
150: (7 - (4 - 5)) × 3
151: (7 - 4) × (5 + 3)
152: 7 + 5 + 3 × 4
153: (7 + 5) + 3 × 4
154: 7 + (5 + 3 × 4)
155: 7 + (5 + (3 × 4))
156: 7 + 5 +(3 × 4)
157: (7 + 5) + (3 × 4)
158: (7 - 5) × 3 × 4
159: ((7 - 5) × 3) × 4
160: (7 - 5) × (3 × 4)
161: 7 + 5 + 4 × 3
162: (7 + 5) + 4 × 3
163: 7 + (5 + 4 × 3)
164: 7 + (5 + (4 × 3))
165: 7 + 5 +(4 × 3)
166: (7 + 5) + (4 × 3)
167: (7 + 5 - 4) × 3
168: ((7 + 5) - 4) × 3
169: (7 + (5 - 4)) × 3
170: 7 + 5 × 4 - 3
171: (7 + 5 × 4) - 3
172: (7 + (5 × 4)) - 3
173: 7 + (5 × 4) - 3
174: 7 + (5 × 4 - 3)
175: 7 + ((5 × 4) - 3)
176: (7 - 5) × 4 × 3
177: ((7 - 5) × 4) × 3
178: (7 - 5) × (4 × 3)

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(7+5-4)*3

（3*4）+（5+7）=24