用简便方法计算9.08乘1.8减3.7
问题描述:
用简便方法计算9.08乘1.8减3.7
答
9.08*1.8-3.7
=9.08*1.8-2*1.8-0.1
=7.08*1.8-0.1
=12.744-0.1
=12.644