1.08×0.8÷0.21的简便算法_数学解答

1.08×0.8÷0.21的简便算法

人气：353 ℃　时间：2020-06-10 14:37:26

解答

原式=1.08÷0.21×0.8
=1.08÷(21/100)×4/5
=108×(100/21)×4/5
=108×4/(21×5)
=36×4/(7×5)
=144/35