1:(5 + 7 - 8) × 6
2:((5 + 7) - 8) × 6
3:(5 + (7 - 8)) × 6
4:(5 + 7) × (8 - 6)
5:(5 - 8 + 7) × 6
6:((5 - 8) + 7) × 6
7:(5 - (8 - 7)) × 6
8:6 × (5 + 7 - 8)
9:6 × ((5 + 7) - 8)
10:6 × (5 + (7 - 8))
11:6 × (5 - 8 + 7)
12:6 × ((5 - 8) + 7)
13:6 × (5 - (8 - 7))
14:6 × (7 + 5 - 8)
15:6 × ((7 + 5) - 8)
16:6 × (7 + (5 - 8))
17:(6 ÷ (7 - 5)) × 8
18:6 ÷ (7 - 5) × 8
19:6 ÷ ((7 - 5) ÷ 8)
20:6 × (7 - 8 + 5)
21:6 × ((7 - 8) + 5)
22:6 × (7 - (8 - 5))
23:6 × (8 ÷ (7 - 5))
24:6 × 8 ÷(7 - 5)
25:(6 × 8) ÷ (7 - 5)
26:(7 + 5 - 8) × 6
27:((7 + 5) - 8) × 6
28:(7 + (5 - 8)) × 6
29:(7 + 5) × (8 - 6)
30:(7 - 8 + 5) × 6
31:((7 - 8) + 5) × 6
32:(7 - (8 - 5)) × 6
33:(8 - 6) × (5 + 7)
34:(8 - 6) × (7 + 5)
35:8 × (6 ÷ (7 - 5))
36:8 × 6 ÷(7 - 5)
37:(8 × 6) ÷ (7 - 5)
38:(8 ÷ (7 - 5)) × 6
39:8 ÷ (7 - 5) × 6
40:8 ÷ ((7 - 5) ÷ 6)