5.6.8.9 24点

40种以上

给你48种1: (5 + 8 - 9) × 6
2: ((5 + 8) - 9) × 6
3: (5 + (8 - 9)) × 6
4: (5 - 9 + 8) × 6
5: ((5 - 9) + 8) × 6
6: (5 - (9 - 8)) × 6
7: 6 × (5 + 8 - 9)
8: 6 × ((5 + 8) - 9)
9: 6 × (5 + (8 - 9))
10: 6 × (5 - 9 + 8)
11: 6 × ((5 - 9) + 8)
12: 6 × (5 - (9 - 8))
13: 6 × (8 + 5 - 9)
14: 6 × ((8 + 5) - 9)
15: 6 × (8 + (5 - 9))
16: 6 × (8 - 9 + 5)
17: 6 × ((8 - 9) + 5)
18: 6 × (8 - (9 - 5))
19: (6 + 9) ÷ 5 × 8
20: ((6 + 9) ÷ 5) × 8
21: (6 + 酣涪丰皇莶郝奉酮斧捆9) ÷ (5 ÷ 8)
22: (6 + 9) × 8 ÷ 5
23: ((6 + 9) × 8) ÷ 5
24: (6 + 9) × (8 ÷ 5)
25: 8 ÷ 5 ×(6 + 9)
26: (8 ÷ 5) × (6 + 9)
27: 8 ÷ (5 ÷ (6 + 9))
28: (8 + 5 - 9) × 6
29: ((8 + 5) - 9) × 6
30: (8 + (5 - 9)) × 6
31: 8 ÷ 5 ×(9 + 6)
32: (8 ÷ 5) × (9 + 6)
33: 8 ÷ (5 ÷ (9 + 6))
34: (8 × (6 + 9)) ÷ 5
35: 8 × (6 + 9) ÷ 5
36: 8 × ((6 + 9) ÷ 5)
37: (8 - 9 + 5) × 6
38: ((8 - 9) + 5) × 6
39: (8 - (9 - 5)) × 6
40: (8 × (9 + 6)) ÷ 5
41: 8 × (9 + 6) ÷ 5
42: 8 × ((9 + 6) ÷ 5)
43: (9 + 6) ÷ 5 × 8
44: ((9 + 6) ÷ 5) × 8
45: (9 + 6) ÷ (5 ÷ 8)
46: (9 + 6) × 8 ÷ 5
47: ((9 + 6) × 8) ÷ 5
48: (9 + 6) × (8 ÷ 5)

只有4种

(8+5-9)*6=24