做不出来 只只能算到44.（7-3/2）*8=44
是不是算24啊?有很多答案呢．
1:(7 - 3 + 8) × 2
2:((7 - 3) + 8) × 2
3:(7 - (3 - 8)) × 2
4:(7 - 3) × (8 - 2)
5:(7 + 2) ÷ 3 × 8
6:((7 + 2) ÷ 3) × 8
7:(7 + 2) ÷ (3 ÷ 8)
8:(7 + 2) × 8 ÷ 3
9:((7 + 2) × 8) ÷ 3
10:(7 + 2) × (8 ÷ 3)
11:(7 + 8 - 3) × 2
12:((7 + 8) - 3) × 2
13:(7 + (8 - 3)) × 2
14:(3 - 7) × (2 - 8)
15:(2 + 7) ÷ 3 × 8
16:((2 + 7) ÷ 3) × 8
17:(2 + 7) ÷ (3 ÷ 8)
18:2 × (7 - 3 + 8)
19:2 × ((7 - 3) + 8)
20:2 × (7 - (3 - 8))
21:(2 + 7) × 8 ÷ 3
22:((2 + 7) × 8) ÷ 3
23:(2 + 7) × (8 ÷ 3)
24:2 × (7 + 8 - 3)
25:2 × ((7 + 8) - 3)
26:2 × (7 + (8 - 3))
27:2 × (8 + 7 - 3)
28:2 × ((8 + 7) - 3)
29:2 × (8 + (7 - 3))
30:(2 - 8) × (3 - 7)
31:2 × (8 - 3 + 7)
32:2 × ((8 - 3) + 7)
33:2 × (8 - (3 - 7))
34:(8 + 7 - 3) × 2
35:((8 + 7) - 3) × 2
36:(8 + (7 - 3)) × 2
37:8 ÷ (7 ÷ 3 - 2)
38:8 ÷ ((7 ÷ 3) - 2)
39:(8 × (7 + 2)) ÷ 3
40:8 × (7 + 2) ÷ 3
41:8 × ((7 + 2) ÷ 3)
42:(8 - 3 + 7) × 2
43:((8 - 3) + 7) × 2
44:(8 - (3 - 7)) × 2
45:8 ÷ 3 ×(7 + 2)
46:(8 ÷ 3) × (7 + 2)
47:8 ÷ (3 ÷ (7 + 2))
48:8 ÷ 3 ×(2 + 7)
49:(8 ÷ 3) × (2 + 7)
50:8 ÷ (3 ÷ (2 + 7))
51:(8 - 2) × (7 - 3)
52:(8 × (2 + 7)) ÷ 3
53:8 × (2 + 7) ÷ 3
54:8 × ((2 + 7) ÷ 3)