2889的24点怎么算

1:(2 - 8 + 9) × 8

2:((2 - 8) + 9) × 8

3:(2 - (8 - 9)) × 8

4:(2 + 9 - 8) × 8

5:((2 + 9) - 8) × 8

6:(2 + (9 - 8)) × 8

7:8 × (2 - 8 + 9)

8:8 × ((2 - 8) + 9)

9:8 × (2 - (8 - 9))

10:8 × (2 + 9 - 8)

11:8 × ((2 + 9) - 8)

12:8 × (2 + (9 - 8))

13:8 × (9 + 2 - 8)

14:8 × ((9 + 2) - 8)

15:8 × (9 + (2 - 8))

16:8 × (9 - 8 + 2)

17:8 × ((9 - 8) + 2)

18:8 × (9 - (8 - 2))

19:(9 + 2 - 8) × 8

20:((9 + 2) - 8) × 8

21:(9 + (2 - 8)) × 8

22:(9 - 8 + 2) × 8

23:((9 - 8) + 2) × 8

24:(9 - (8 - 2)) × 8