下面的题用简便方法怎么算?0.89x100.1
问题描述:
下面的题用简便方法怎么算?
0.89x100.1
答
0.89x100.1
=0.89×(100+0.1)
=0.89×100+0.89×0.1
=89+0.089
=89.089