4.75乘以4.75加4又4分之3加4又4分之3乘以4.25

问题描述:

4.75乘以4.75加4又4分之3加4又4分之3乘以4.25

4.75×4.75+4又4分之3+4又4分之3×4.25
=4.75×4.75+4.75×1+4.75×4.25
=4.75×(4.75+1+4.25)
=4.75×10
=47.5不客气