Question

1个9,1个5,1个4,1个2加减乘除怎么计算等于24

Answer 1

1:(9 - 5) × (4 + 2)

2:(9 + 5) × 2 - 4

3:((9 + 5) × 2) - 4

4:(9 - 5 + 2) × 4

5:((9 - 5) + 2) × 4

6:(9 - (5 - 2)) × 4

7:(9 - 5) × (2 + 4)

8:(9 + 2 - 5) × 4

9:((9 + 2) - 5) × 4

10:(9 + (2 - 5)) × 4

11:(5 + 9) × 2 - 4

12:((5 + 9) × 2) - 4

13:4 × (9 - 5 + 2)

14:4 × ((9 - 5) + 2)

15:4 × (9 - (5 - 2))

16:4 × (9 + 2 - 5)

17:4 × ((9 + 2) - 5)

18:4 × (9 + (2 - 5))

19:(4 + 2) × (9 - 5)

20:4 × (2 + 9 - 5)

21:4 × ((2 + 9) - 5)

22:4 × (2 + (9 - 5))

23:4 × (2 - 5 + 9)

24:4 × ((2 - 5) + 9)

25:4 × (2 - (5 - 9))

26:(2 + 9 - 5) × 4

27:((2 + 9) - 5) × 4

28:(2 + (9 - 5)) × 4

29:(2 × (9 + 5)) - 4

30:2 × (9 + 5) - 4

31:(2 - 5 + 9) × 4

32:((2 - 5) + 9) × 4

33:(2 - (5 - 9)) × 4

34:(2 × (5 + 9)) - 4

35:2 × (5 + 9) - 4

36:(2 + 4) × (9 - 5)