10+(8-1)*2=24
2 × (8 - 1) + 10
10 - (1 - 8) × 2
1: 10 - (1 - 8) × 2
2: 10 - ((1 - 8) × 2)
3: 10 + (8 - 1) × 2
4: 10 + ((8 - 1) × 2)
5: 10 - (2 × (1 - 8))
6: 10 - 2 ×(1 - 8)
7: 10 + (2 × (8 - 1))
8: 10 + 2 ×(8 - 1)
9: (8 - 1) × 2 + 10
10: ((8 - 1) × 2) + 10
11: (2 × (8 - 1)) + 10
12: 2 × (8 - 1) + 10