用2、2、3、9这几个数字算出24点

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

2乘以2，再用9减3，再用6乘以4.

(2÷3+2)×9=24
2×9+2×3=24
(9-3)×2×2=24

2*9+2*3=24