简便计算:(九分之七—六分之五+三十六分之七)×36—5.45×6+1.45×6

问题描述:

简便计算:(九分之七—六分之五+三十六分之七)×36—5.45×6+1.45×6

(九分之七—六分之五+三十六分之七)×36
=7/9×36 - 5/6×36+7/36×36
=28-30+7
=5
5.45×6+1.45×6
=(5.45+1.45)×6
=6.9×6
=(7-0.1)×6
=7×6-0.1×6
=42-0.6
=41.4