25.25*4一5.25\0.25的简便计算

问题描述:

25.25*4一5.25\0.25的简便计算

=25*4+0.25*4-5/0.25-0.25/0.25=100+1-20-1=(100-20)+(1-1)=80.

(25+0.25)*4-(5+0.25)/0.25
=25*4+0.25*4-5/0.25-0.25/0.25
=100+1-20-1=80

25.25*4一5.25\0.25
=25.25*4一5.25*4
=(25.25-5.25)*4
=20*4
=80