5+5+5+5+5++55+555当然是等于220.

问题描述:

5+5+5+5+5++55+555
当然是等于220.

5+5+5+5+5++55+555
=5乘以5+11乘以5+111乘以5
=5乘以(5+11+111)
=5乘以127
=635

5+5+5+5+5++55+555
=25+55+555
=80+555
=635