Question

把3，4，6，9用加减乘除等运算使最终结果是24

Answer 1

这是所以的算法
1: (9 + 3 - 6) × 4
2: ((9 + 3) - 6) × 4
3: (9 + (3 - 6)) × 4
4: (9 + 3) × (6 - 4)
5: (9 - 6 + 3) × 4
6: ((9 - 6) + 3) × 4
7: (9 - (6 - 3)) × 4
8: (3 + 9 - 6) × 4
9: ((3 + 9) - 6) × 4
10: (3 + (9 - 6)) × 4
11: (3 + 9) × (6 - 4)
12: (3 - 6 + 9) × 4
13: ((3 - 6) + 9) × 4
14: (3 - (6 - 9)) × 4
15: 4 × (9 + 3 - 6)
16: 4 × ((9 + 3) - 6)
17: 4 × (9 + (3 - 6))
18: 4 × (9 - 6 + 3)
19: 4 × ((9 - 6) + 3)
20: 4 × (9 - (6 - 3))
21: 4 × (3 + 9 - 6)
22: 4 × ((3 + 9) - 6)
23: 4 × (3 + (9 - 6))
24: 4 × (3 - 6 + 9)
25: 4 × ((3 - 6) + 9)
26: 4 × (3 - (6 - 9))
27: (6 - 4) × (9 + 3)
28: (6 - 4) × (3 + 9)

Answer 2

6-3=3 9－3=6 6*4=24

Answer 3

3+4+6-9+6+9=24

追答

不客气