Question

怎样把3,-5,7,-13用加减乘除运算成24

Answer 1

1:(5 × 13 + 7) ÷ 3

2:((5 × 13) + 7) ÷ 3

3:(7 + 5 × 13) ÷ 3

4:(7 + (5 × 13)) ÷ 3

5:(7 + 13 × 5) ÷ 3

6:(7 + (13 × 5)) ÷ 3

7:(13 × 5 + 7) ÷ 3

8:((13 × 5) + 7) ÷ 3