4.75*4.75+4又4分之3+4又4分之3*4.25的简便运算

问题描述:

4.75*4.75+4又4分之3+4又4分之3*4.25的简便运算

4.75*4.75+4又4分之3+4又4分之3*4.25
=4.75*4.75+4.75+4.75*4.25
=4.75(4.75+1+4.25)
=4.75*10
=47.5

4.75*4.75+4又4分之3+4又4分之3*4.25
=4.75*4.75+4.75+4.75*4.25
=4.75*(4.75+1+4.25)
=4.75*10
=47.5