12.75/6.3简算,脱式计算
问题描述:
12.75/6.3简算,脱式计算
还有么,有人么,帮帮忙
答
12.6/6.3
=12.6÷3÷2.1
=4.2÷2.1
=2
数字错误修改了那3.75*0.89简算,脱式计算3.75×0.89=3.75×(1-0.11)=3.75-3.75×0.11=3.75-0.4125=3.3375