用5 3 4 7这四个数和加减乘除括号五种运算符号要求算式得数为24

用5 3 4 7这四个数和加减乘除括号五种运算符号要求算式得数为24
用5 3 4 7这四个数和加减乘除括号五种运算符号要求算式得数为24

用5 3 4 7这四个数和加减乘除括号五种运算符号要求算式得数为24
5+3x4+7=24

3*4+5+7=24

（5+3）*（7-4）

5+3x4+7=24
（5+3）*（7-4）=24

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

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

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