15.3*99+15.3有简便吗?怎么算
问题描述:
15.3*99+15.3有简便吗?怎么算
答
15.3*(99+1)=1530
答
15.3(99+1)=1530
答
15.3*99+15.3
=15.3*(99+1)
=15.3*100
=1530
答
15.3*(99+1)=153