6.5+1.43/1.3怎样用运算定律计算_数学解答

6.5+1.43/1.3怎样用运算定律计算

人气：469 ℃　时间：2019-10-17 08:30:13

解答

6.5+1.43/1.3
=6.5+(1.3+0.13)/1.3
=6.5+(1.3/1.3+0.13/1.3)
=6.5+1+0.1
=7.65.75/1.5+0.25*6.8