简便计算:72*55+28*56=( )

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/28 01:25:51
简便计算:72*55+28*56=( )
x){ɾ/-|n=̍LM,LlPx&Hev6DcƳ۞s͍O75}03U€əZan!kh`&!d$A]o k뷿lok36iSh^+Ϧ

简便计算:72*55+28*56=( )
简便计算:72*55+28*56=( )

简便计算:72*55+28*56=( )
刘晶美,
72×55+28×56
=72×55+28×55+28
=55×(72+28)+28
=55×100+28
=5500+28
=5528

72×55+28×56
=72×55+28×55+28
=55×(72+28)+28
=55×100+28
=5500+28
=5528
请采纳

(72+28)*55+28=5528