优质解答
1:(1 + 2) × 2 × 4
2:((1 + 2) × 2) × 4
3:(1 + 2) × (2 × 4)
4:(1 + 2) × 4 × 2
5:((1 + 2) × 4) × 2
6:(1 + 2) × (4 × 2)
7:(2 + 1) × 2 × 4
8:((2 + 1) × 2) × 4
9:(2 + 1) × (2 × 4)
10:(2 × (1 + 2)) × 4
11:2 × (1 + 2) × 4
12:2 × ((1 + 2) × 4)
13:(2 + 1) × 4 × 2
14:((2 + 1) × 4) × 2
15:(2 + 1) × (4 × 2)
16:(2 × (2 + 1)) × 4
17:2 × (2 + 1) × 4
18:2 × ((2 + 1) × 4)
19:2 × (4 × (1 + 2))
20:2 × 4 ×(1 + 2)
21:(2 × 4) × (1 + 2)
22:2 × (4 × (2 + 1))
23:2 × 4 ×(2 + 1)
24:(2 × 4) × (2 + 1)
25:(4 × (1 + 2)) × 2
26:4 × (1 + 2) × 2
27:4 × ((1 + 2) × 2)
28:(4 × (2 + 1)) × 2
29:4 × (2 + 1) × 2
30:4 × ((2 + 1) × 2)
31:4 × (2 × (1 + 2))
32:4 × 2 ×(1 + 2)
33:(4 × 2) × (1 + 2)
34:4 × (2 × (2 + 1))
35:4 × 2 ×(2 + 1)
36:(4 × 2) × (2 + 1)
1:(1 + 2) × 2 × 4
2:((1 + 2) × 2) × 4
3:(1 + 2) × (2 × 4)
4:(1 + 2) × 4 × 2
5:((1 + 2) × 4) × 2
6:(1 + 2) × (4 × 2)
7:(2 + 1) × 2 × 4
8:((2 + 1) × 2) × 4
9:(2 + 1) × (2 × 4)
10:(2 × (1 + 2)) × 4
11:2 × (1 + 2) × 4
12:2 × ((1 + 2) × 4)
13:(2 + 1) × 4 × 2
14:((2 + 1) × 4) × 2
15:(2 + 1) × (4 × 2)
16:(2 × (2 + 1)) × 4
17:2 × (2 + 1) × 4
18:2 × ((2 + 1) × 4)
19:2 × (4 × (1 + 2))
20:2 × 4 ×(1 + 2)
21:(2 × 4) × (1 + 2)
22:2 × (4 × (2 + 1))
23:2 × 4 ×(2 + 1)
24:(2 × 4) × (2 + 1)
25:(4 × (1 + 2)) × 2
26:4 × (1 + 2) × 2
27:4 × ((1 + 2) × 2)
28:(4 × (2 + 1)) × 2
29:4 × (2 + 1) × 2
30:4 × ((2 + 1) × 2)
31:4 × (2 × (1 + 2))
32:4 × 2 ×(1 + 2)
33:(4 × 2) × (1 + 2)
34:4 × (2 × (2 + 1))
35:4 × 2 ×(2 + 1)
36:(4 × 2) × (2 + 1)