16.46*15.3+8.54*15.3-25*14.9(简便计算)
问题描述:
16.46*15.3+8.54*15.3-25*14.9(简便计算)
答
=(16.46+8.54)*15.3-25*14.9
=25*15.3-25*14.9
=25*(15.3-14.9)
=25*0.4
=10