2345算24点 快飞速.

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1:2 × (3 + 4 + 5)
2:2 × ((3 + 4) + 5)
3:2 × (3 + (4 + 5))
4:2 × (3 + 5 + 4)
5:2 × ((3 + 5) + 4)
6:2 × (3 + (5 + 4))
7:2 × (4 + 3 + 5)
8:2 × ((4 + 3) + 5)
9:2 × (4 + (3 + 5))
10:2 × (4 + 5 + 3)
11:2 × ((4 + 5) + 3)
12:2 × (4 + (5 + 3))
13:2 × (5 + 3 + 4)
14:2 × ((5 + 3) + 4)
15:2 × (5 + (3 + 4))
16:2 × (5 + 4 + 3)
17:2 × ((5 + 4) + 3)
18:2 × (5 + (4 + 3))
19:(3 - 2 + 5) × 4
20:((3 - 2) + 5) × 4
21:(3 - (2 - 5)) × 4
22:(3 + 4 + 5) × 2
23:((3 + 4) + 5) × 2
24:(3 + (4 + 5)) × 2
25:(3 + 5 - 2) × 4
26:((3 + 5) - 2) × 4
27:(3 + (5 - 2)) × 4
28:(3 + 5 + 4) × 2
29:((3 + 5) + 4) × 2
30:(3 + (5 + 4)) × 2
31:4 × (3 - 2 + 5)
32:4 × ((3 - 2) + 5)
33:4 × (3 - (2 - 5))
34:(4 + 3 + 5) × 2
35:((4 + 3) + 5) × 2
36:(4 + (3 + 5)) × 2
37:4 × (3 + 5 - 2)
38:4 × ((3 + 5) - 2)
39:4 × (3 + (5 - 2))
40:4 × (5 - 2 + 3)
41:4 × ((5 - 2) + 3)
42:4 × (5 - (2 - 3))
43:(4 + 5 + 3) × 2
44:((4 + 5) + 3) × 245:(4 + (5 + 3)) × 246:4 × (5 + 3 - 2)47:4 × ((5 + 3) - 2)48:4 × (5 + (3 - 2))49:(5 - 2 + 3) × 450:((5 - 2) + 3) × 451:(5 - (2 - 3)) × 452:(5 + 3 - 2) × 453:((5 + 3) - 2) × 454:(5 + (3 - 2)) × 455:(5 + 3 + 4) × 256:((5 + 3) + 4) × 257:(5 + (3 + 4)) × 258:(5 + 4 + 3) × 259:((5 + 4) + 3) × 260:(5 + (4 + 3)) × 2======以下答案可供参考======供参考答案1:2×（3+4+5）=2×12=24