1:(8 + 12) ÷ 10 × 12
2:((8 + 12) ÷ 10) × 12
3:(8 + 12) ÷ (10 ÷ 12)
4:(8 + 12) × 12 ÷ 10
5:((8 + 12) × 12) ÷ 10
6:(8 + 12) × (12 ÷ 10)
7:10 × 12 - 8 × 12
8:(10 × 12) - 8 × 12
9:10 × 12 -(8 × 12)
10:(10 × 12) - (8 × 12)
11:10 × 12 - 12 × 8
12:(10 × 12) - 12 × 8
13:10 × 12 -(12 × 8)
14:(10 × 12) - (12 × 8)
15:(12 + 8) ÷ 10 × 12
16:((12 + 8) ÷ 10) × 12
17:(12 + 8) ÷ (10 ÷ 12)
18:(12 + 8) × 12 ÷ 10
19:((12 + 8) × 12) ÷ 10
20:(12 + 8) × (12 ÷ 10)
21:(12 × (8 + 12)) ÷ 10
22:12 × (8 + 12) ÷ 10
23:12 × ((8 + 12) ÷ 10)
24:12 × 10 - 8 × 12
25:(12 × 10) - 8 × 12
26:12 × 10 -(8 × 12)
27:(12 × 10) - (8 × 12)
28:12 ÷ 10 ×(8 + 12)
29:(12 ÷ 10) × (8 + 12)
30:12 ÷ (10 ÷ (8 + 12))
31:12 × 10 - 12 × 8
32:(12 × 10) - 12 × 8
33:12 × 10 -(12 × 8)
34:(12 × 10) - (12 × 8)
35:12 ÷ 10 ×(12 + 8)
36:(12 ÷ 10) × (12 + 8)
37:12 ÷ (10 ÷ (12 + 8))
38:(12 × (12 + 8)) ÷ 10
39:12 × (12 + 8) ÷ 10
40:12 × ((12 + 8) ÷ 10)
