7.25×40%+2又4分之3×5分之2

问题描述:

7.25×40%+2又4分之3×5分之2

7.25×40%+2又4分之3×5分之2
=7.25×0.4+2又4分之3×0.4
=(7.25+2.75)×0.4
=10×0.4
=4