5.5乘0.66加6.6乘0.55 简便算法是什么_数学解答

5.5乘0.66加6.6乘0.55 简便算法是什么

人气：243 ℃　时间：2020-04-01 01:10:58

解答

5.5*0.66+6.6*0.55
=0.55*6.6+6.6*0.55
=6.6*(0.55+0.55)
=6.6*1.1
=6.6*(1+0.1)
=6.6*1+6.6*0.1
=6.6+0.66
=7.26