用简便方法计算下面各题.4.85*32除以0.25
问题描述:
用简便方法计算下面各题.4.85*32除以0.25
答
4.85*32÷0.25
=4.85×8×4×1/4
=4.85×8
=(4+0.8+0.05)×8
=32+6.4+0.4
=38.8