7 12 4 8怎样用运算符号等于24
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7 12 4 8怎样用运算符号等于24
7 12 4 8怎样用运算符号等于24
7 12 4 8怎样用运算符号等于24
1: (7 × (12 - 8)) - 4
2: 7 × (12 - 8) - 4
3: 7 × 4 - 12 + 8
4: (7 × 4) - 12 + 8
5: (7 × 4 - 12) + 8
6: ((7 × 4) - 12) + 8
7: 7 × 4 -(12 - 8)
8: (7 × 4) - (12 - 8)
9: 7 × 4 + 8 - 12
10: (7 × 4) + 8 - 12
11: (7 × 4 + 8) - 12
12: ((7 × 4) + 8) - 12
13: 7 × 4 +(8 - 12)
14: (7 × 4) + (8 - 12)
15: (12 - 8) × 7 - 4
16: ((12 - 8) × 7) - 4
17: 4 × 7 - 12 + 8
18: (4 × 7) - 12 + 8
19: (4 × 7 - 12) + 8
20: ((4 × 7) - 12) + 8
21: 4 × 7 -(12 - 8)
22: (4 × 7) - (12 - 8)
23: 4 × 7 + 8 - 12
24: (4 × 7) + 8 - 12
25: (4 × 7 + 8) - 12
26: ((4 × 7) + 8) - 12
27: 4 × 7 +(8 - 12)
28: (4 × 7) + (8 - 12)
29: 8 + 7 × 4 - 12
30: (8 + 7 × 4) - 12
31: (8 + (7 × 4)) - 12
32: 8 + (7 × 4) - 12
33: 8 + (7 × 4 - 12)
34: 8 + ((7 × 4) - 12)
35: 8 - 12 + 7 × 4
36: (8 - 12) + 7 × 4
37: 8 - 12 +(7 × 4)
38: (8 - 12) + (7 × 4)
39: 8 - (12 - 7 × 4)
40: 8 - (12 - (7 × 4))
41: 8 - 12 + 4 × 7
42: (8 - 12) + 4 × 7
43: 8 - 12 +(4 × 7)
44: (8 - 12) + (4 × 7)
45: 8 - (12 - 4 × 7)
46: 8 - (12 - (4 × 7))
47: 8 + 4 × 7 - 12
48: (8 + 4 × 7) - 12
49: (8 + (4 × 7)) - 12
50: 8 + (4 × 7) - 12
51: 8 + (4 × 7 - 12)
52: 8 + ((4 × 7) - 12)