Question

7.1.2.5怎么才能用加减乘除=24?急!急!急!

Answer 1

1: (7 + 1) × (5 - 2)
2: (7 + 1 × 5) × 2
3: (7 + (1 × 5)) × 2
4: (7 × 1 + 5) × 2
5: ((7 × 1) + 5) × 2
6: (7 ÷ 1 + 5) × 2
7: ((7 ÷ 1) + 5) × 2
8: (7 - 2) × 5 - 1
9: ((7 - 2) × 5) - 1
10: (7 + 5) × 1 × 2
11: (7 + 5 × 1) × 2
12: ((7 + 5) × 1) × 2
13: (7 + (5 × 1)) × 2
14: (7 + 5) × (1 × 2)
15: (7 + 5) ÷ 1 × 2
16: (7 + 5 ÷ 1) × 2
17: ((7 + 5) ÷ 1) × 2
18: (7 + (5 ÷ 1)) × 2
19: (7 + 5) ÷ (1 ÷ 2)
20: (7 + 5) × 2 × 1
21: ((7 + 5) × 2) × 1
22: (7 + 5) × (2 × 1)
23: (7 + 5) × 2 ÷ 1
24: ((7 + 5) × 2) ÷ 1
25: (7 + 5) × (2 ÷ 1)
26: (1 + 7) × (5 - 2)
27: (1 × 7 + 5) × 2
28: ((1 × 7) + 5) × 2
29: (1 × (7 + 5)) × 2
30: 1 × (7 + 5) × 2
31: 1 × ((7 + 5) × 2)
32: 1 × (2 × (7 + 5))
33: 1 × 2 ×(7 + 5)
34: (1 × 2) × (7 + 5)
35: 1 × (2 × (5 + 7))
36: 1 × 2 ×(5 + 7)
37: (1 × 2) × (5 + 7)
38: (1 × 5 + 7) × 2
39: ((1 × 5) + 7) × 2
40: (1 × (5 + 7)) × 2
41: 1 × (5 + 7) × 2
42: 1 × ((5 + 7) × 2)
43: 2 × (7 + 1 × 5)
44: 2 × (7 + (1 × 5))
45: 2 × (7 × 1 + 5)
46: 2 × ((7 × 1) + 5)
47: 2 × (7 ÷ 1 + 5)
48: 2 × ((7 ÷ 1) + 5)
49: (2 × (7 + 5)) × 1
50: 2 × (7 + 5) × 1
51: 2 × (7 + 5 × 1)
52: 2 × ((7 + 5) × 1)
53: 2 × (7 + (5 × 1))
54: (2 × (7 + 5)) ÷ 1
55: 2 × (7 + 5) ÷ 1
56: 2 × (7 + 5 ÷ 1)
57: 2 × ((7 + 5) ÷ 1)
58: 2 × (7 + (5 ÷ 1))
59: 2 × (1 × 7 + 5)
60: 2 × ((1 × 7) + 5)
61: 2 × (1 × (7 + 5))
62: 2 × 1 ×(7 + 5)
63: (2 × 1) × (7 + 5)
64: 2 ÷ 1 ×(7 + 5)
65: (2 ÷ 1) × (7 + 5)
66: 2 ÷ (1 ÷ (7 + 5))
67: 2 × (1 × 5 + 7)
68: 2 × ((1 × 5) + 7)
69: 2 × (1 × (5 + 7))
70: 2 × 1 ×(5 + 7)
71: (2 × 1) × (5 + 7)
72: 2 ÷ 1 ×(5 + 7)
73: (2 ÷ 1) × (5 + 7)
74: 2 ÷ (1 ÷ (5 + 7))
75: (2 × (5 + 7)) × 1
76: 2 × (5 + 7) × 1
77: 2 × (5 + 7 × 1)
78: 2 × ((5 + 7) × 1)
79: 2 × (5 + (7 × 1))
80: (2 × (5 + 7)) ÷ 1
81: 2 × (5 + 7) ÷ 1
82: 2 × (5 + 7 ÷ 1)
83: 2 × ((5 + 7) ÷ 1)
84: 2 × (5 + (7 ÷ 1))
85: 2 × (5 + 1 × 7)
86: 2 × (5 + (1 × 7))
87: 2 × (5 × 1 + 7)
88: 2 × ((5 × 1) + 7)
89: 2 × (5 ÷ 1 + 7)
90: 2 × ((5 ÷ 1) + 7)
91: (5 + 7) × 1 × 2
92: (5 + 7 × 1) × 2
93: ((5 + 7) × 1) × 2
94: (5 + (7 × 1)) × 2
95: (5 + 7) × (1 × 2)
96: (5 + 7) ÷ 1 × 2
97: (5 + 7 ÷ 1) × 2
98: ((5 + 7) ÷ 1) × 2
99: (5 + (7 ÷ 1)) × 2
100: (5 + 7) ÷ (1 ÷ 2)
101: (5 + 7) × 2 × 1
102: ((5 + 7) × 2) × 1
103: (5 + 7) × (2 × 1)
104: (5 + 7) × 2 ÷ 1
105: ((5 + 7) × 2) ÷ 1
106: (5 + 7) × (2 ÷ 1)
107: (5 × (7 - 2)) - 1
108: 5 × (7 - 2) - 1
109: (5 + 1 × 7) × 2
110: (5 + (1 × 7)) × 2
111: (5 × 1 + 7) × 2
112: ((5 × 1) + 7) × 2
113: (5 ÷ 1 + 7) × 2
114: ((5 ÷ 1) + 7) × 2
115: (5 - 2) × (7 + 1)
116: (5 - 2) × (1 + 7)

Answer 2

(7+1)*(5-2)=24
或(7+5)*(2*1)=24 记行给个最佳答案哦

Answer 3

7+12+5=24

Answer 4

(7+1)*(5-2)=24