怎样把3,-5,7,-13用加减乘除运算成24一定要对啊
问题描述:
怎样把3,-5,7,-13用加减乘除运算成24
一定要对啊
答
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