1: (2 - 10) × (5 - 8)

2: (5 - 8) × (2 - 10)

3: (8 - 5) × ( 10 - 2)

4: 8 × ( 10 - (2 + 5))

5: 8 × ( 10 - 2 - 5)

6: 8 × (( 10 - 2) - 5)

7: 8 × ( 10 - (5 + 2))

8: 8 × ( 10 - 5 - 2)

9: 8 × (( 10 - 5) - 2)

10: ( 10 - (2 + 5)) × 8

1 1: ( 10 - 2 - 5) × 8

12: (( 10 - 2) - 5) × 8

13: ( 10 - 2) × (8 - 5)

14: ( 10 - (5 + 2)) × 8

15: ( 10 - 5 - 2) × 8

16: (( 10 - 5) - 2) × 8