(13-8.4)*0.99简便计算
问题描述:
(13-8.4)*0.99简便计算
答
13-8.4=4.6
4.6×(1-0.01)=4.6-0.046=4.554
答
(13-8.4)*0.99
=4.6*0.99
=4.6*(1-0.01)
=4.6*1-4.6*0.01
=4.6-0.046
=4.554