2.05减0.81除2.7乘4.5用简便算法怎么算
问题描述:
2.05减0.81除2.7乘4.5用简便算法怎么算
答
2.05-0.81/2.7*4.5 =2.05-0.3*4.5
=2.05-1.35
=0.7