3.5x0.8+5.5x80%+80的简算

问题描述:

3.5x0.8+5.5x80%+80的简算

3.5x0.8+5.5x80%+80
=3.5×0.8+5.5×0.8+80
=(3.5+5.5)×0.8+80
=7.2+80
=87.2