2, 3, 8, 4的24点答案:
1: 2 × (3 × (8 - 4))
2: 2 × 3 ×(8 - 4)
3: (2 × 3) × (8 - 4)
4: (2 - 3 + 4) × 8
5: ((2 - 3) + 4) × 8
6: (2 - (3 - 4)) × 8
7: (2 × (8 - 4)) × 3
8: 2 × (8 - 4) × 3
9: 2 × ((8 - 4) × 3)
10: (2 + 4 - 3) × 8
11: ((2 + 4) - 3) × 8
12: (2 + (4 - 3)) × 8
13: 3 × (2 × (8 - 4))
14: 3 × 2 ×(8 - 4)
15: (3 × 2) × (8 - 4)
16: 3 × (8 ÷ 2 + 4)
17: 3 × ((8 ÷ 2) + 4)
18: (3 × (8 - 4)) × 2
19: 3 × (8 - 4) × 2
20: 3 × ((8 - 4) × 2)
21: 3 × (4 + 8 ÷ 2)
22: 3 × (4 + (8 ÷ 2))
23: 8 × (2 - 3 + 4)
24: 8 × ((2 - 3) + 4)
25: 8 × (2 - (3 - 4))
26: 8 × (2 + 4 - 3)
27: 8 × ((2 + 4) - 3)
28: 8 × (2 + (4 - 3))
29: (8 ÷ 2 + 4) × 3
30: ((8 ÷ 2) + 4) × 3
31: (8 - 4) × 2 × 3
32: ((8 - 4) × 2) × 3
33: (8 - 4) × (2 × 3)
34: 8 × (4 + 2 - 3)
35: 8 × ((4 + 2) - 3)
36: 8 × (4 + (2 - 3))
37: (8 - 4) × 3 × 2
38: ((8 - 4) × 3) × 2
39: (8 - 4) × (3 × 2)
40: 8 × (4 - 3 + 2)
41: 8 × ((4 - 3) + 2)
42: 8 × (4 - (3 - 2))
43: (4 + 2 - 3) × 8
44: ((4 + 2) - 3) × 8
45: (4 + (2 - 3)) × 8
46: (4 - 3 + 2) × 8
47: ((4 - 3) + 2) × 8
48: (4 - (3 - 2)) × 8
49: (4 + 8 ÷ 2) × 3
50: (4 + (8 ÷ 2)) × 3
(4+2-3)*8
2*3*(8-4)=24
1: 2 × (3 × (8 - 4))
2: 2 × 3 ×(8 - 4)
3: (2 × 3) × (8 - 4)
4: (2 - 3 + 4) × 8
5: ((2 - 3) + 4) × 8
6: (2 - (3 - 4)) × 8
7: (2 × (8 - 4)) × 3
8: 2 × (8 - 4) × 3
9: 2 × ((8 - 4) × 3)
10: (2 + 4 - 3) × 8
11: ((2 + 4) - 3) × 8
12: (2 + (4 - 3)) × 8
13: 3 × (2 × (8 - 4))
14: 3 × 2 ×(8 - 4)
15: (3 × 2) × (8 - 4)
16: 3 × (8 ÷ 2 + 4)
17: 3 × ((8 ÷ 2) + 4)
18: (3 × (8 - 4)) × 2
19: 3 × (8 - 4) × 2
20: 3 × ((8 - 4) × 2)
21: 3 × (4 + 8 ÷ 2)
22: 3 × (4 + (8 ÷ 2))
23: 8 × (2 - 3 + 4)
24: 8 × ((2 - 3) + 4)
25: 8 × (2 - (3 - 4))
26: 8 × (2 + 4 - 3)
27: 8 × ((2 + 4) - 3)
28: 8 × (2 + (4 - 3))
29: (8 ÷ 2 + 4) × 3
30: ((8 ÷ 2) + 4) × 3
31: (8 - 4) × 2 × 3
32: ((8 - 4) × 2) × 3
33: (8 - 4) × (2 × 3)
34: 8 × (4 + 2 - 3)
35: 8 × ((4 + 2) - 3)
36: 8 × (4 + (2 - 3))
37: (8 - 4) × 3 × 2
38: ((8 - 4) × 3) × 2
39: (8 - 4) × (3 × 2)
40: 8 × (4 - 3 + 2)
41: 8 × ((4 - 3) + 2)
42: 8 × (4 - (3 - 2))
43: (4 + 2 - 3) × 8
44: ((4 + 2) - 3) × 8
45: (4 + (2 - 3)) × 8
46: (4 - 3 + 2) × 8
47: ((4 - 3) + 2) × 8
48: (4 - (3 - 2)) × 8
49: (4 + 8 ÷ 2) × 3
50: (4 + (8 ÷ 2)) × 3
[2-(-4)+(-3)]*8
http://www.dffy.com/tool/24.htm