1: (1 + 7) ÷ 2 × 6
2: ((1 + 7) ÷ 2) × 6
3: (1 + 7) ÷ (2 ÷ 6)
4: (1 - 7) × (2 - 6)
5: (1 + 7) × 6 ÷ 2
6: ((1 + 7) × 6) ÷ 2
7: (1 + 7) × (6 ÷ 2)
8: (2 - 6) × (1 - 7)
9: 2 × (6 - 1 + 7)
10: 2 × ((6 - 1) + 7)
11: 2 × (6 - (1 - 7))
12: 2 × (6 + 7 - 1)
13: 2 × ((6 + 7) - 1)
14: 2 × (6 + (7 - 1))
15: 2 × (7 - 1 + 6)
16: 2 × ((7 - 1) + 6)
17: 2 × (7 - (1 - 6))
18: 2 × (7 + 6 - 1)
19: 2 × ((7 + 6) - 1)
20: 2 × (7 + (6 - 1))
21: (6 - 1 + 7) × 2
22: ((6 - 1) + 7) × 2
23: (6 - (1 - 7)) × 2
24: (6 × (1 + 7)) ÷ 2
25: 6 × (1 + 7) ÷ 2
26: 6 × ((1 + 7) ÷ 2)
27: 6 ÷ 2 ×(1 + 7)
28: (6 ÷ 2) × (1 + 7)
29: 6 ÷ (2 ÷ (1 + 7))
30: (6 - 2) × (7 - 1)
31: 6 ÷ 2 ×(7 + 1)
32: (6 ÷ 2) × (7 + 1)
33: 6 ÷ (2 ÷ (7 + 1))
34: (6 + 7 - 1) × 2
35: ((6 + 7) - 1) × 2
36: (6 + (7 - 1)) × 2
37: (6 × (7 + 1)) ÷ 2
38: 6 × (7 + 1) ÷ 2
39: 6 × ((7 + 1) ÷ 2)
40: 6 × (7 - (1 + 2))
41: 6 × (7 - 1 - 2)
42: 6 × ((7 - 1) - 2)
43: 6 × (7 - (2 + 1))
44: 6 × (7 - 2 - 1)
45: 6 × ((7 - 2) - 1)
46: (7 + 1) ÷ 2 × 6
47: ((7 + 1) ÷ 2) × 6
48: (7 + 1) ÷ (2 ÷ 6)
49: (7 - (1 + 2)) × 6
50: (7 - 1 - 2) × 6
51: ((7 - 1) - 2) × 6
52: (7 + 1) × 6 ÷ 2
53: ((7 + 1) × 6) ÷ 2
54: (7 + 1) × (6 ÷ 2)
55: (7 - 1 + 6) × 2
56: ((7 - 1) + 6) × 2
57: (7 - (1 - 6)) × 2
58: (7 - 1) × (6 - 2)
59: (7 - (2 + 1)) × 6
60: (7 - 2 - 1) × 6
61: ((7 - 2) - 1) × 6
62: (7 + 6 - 1) × 2
63: ((7 + 6) - 1) × 2
64: (7 + (6 - 1)) × 2
6×(7-1-2)=24
2×(7+6-1)=24
(1+7)×6÷2=24
6×[7-(2十1)]