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
答
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
答
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