急!3.5*1.2+0.35*88巧算
问题描述：
急!3.5*1.2+0.35*88巧算
答
=0.35*12+0.35*88
=0.35*(12+88)
=35
答
3.5*1.2+0.35*88
=3.5*1.2+3.5*8.8
=3.5*(1.2+8.8)
=3.5*10
=35