162.5÷0.65÷25有简便算法吗和9.8÷(5.2-4.5)
问题描述:
162.5÷0.65÷25有简便算法吗和9.8÷(5.2-4.5)
答
162.5÷0.65÷25
=250*1/25
=10
9.8÷(5.2-4.5)
=9.8÷0.7
=14
答
162.5÷0.65÷25
=250÷25
=10
9.8÷(5.2-4.5)
=9.8÷0.7
14