(46-7/1)×8/1+(43-7/1)×8/1+(41-7/1)×8/1+……+(1-7/1)×8/1

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/04 06:30:24
(46-7/1)×8/1+(43-7/1)×8/1+(41-7/1)×8/1+……+(1-7/1)×8/1

(46-7/1)×8/1+(43-7/1)×8/1+(41-7/1)×8/1+……+(1-7/1)×8/1
(46-7/1)×8/1+(43-7/1)×8/1+(41-7/1)×8/1+……+(1-7/1)×8/1

(46-7/1)×8/1+(43-7/1)×8/1+(41-7/1)×8/1+……+(1-7/1)×8/1
(46-7/1)×8/1+(43-7/1)×8/1+(41-7/1)×8/1+……+(1-7/1)×8/1
=(46+1)×16÷2-7/1×8/1×16
=376-7/2
=375又7/5

2112

(46-7/1)×8/1+(43-7/1)×8/1+(41-7/1)×8/1+……+(1-7/1)×8/1
=(46+1)×16÷2-7/1×8/1×16
=376-7/2
=375又7/5