Question

7 8 9 10四个数字加减乘除如何等于等于24呢?

Answer 1

给你一个网址,类似的问题都可解决：

1:8 - (7 - 9) × 8

2:8 - ((7 - 9) × 8)

3:8 - (8 × (7 - 9))

4:8 - 8 ×(7 - 9)

5:8 + (8 × (9 - 7))

6:8 + 8 ×(9 - 7)

7:8 + (9 - 7) × 8

8:8 + ((9 - 7) × 8)

9:(8 × (9 - 7)) + 8

10:8 × (9 - 7) + 8

11:(9 - 7) × 8 + 8

12:((9 - 7) × 8) + 8