18.2乘以0.25的积减去1.3后,再除以0.5,商是多少?

问题描述:

18.2乘以0.25的积减去1.3后,再除以0.5,商是多少?

(18.2×0.25-1.3)÷0.5
=(4.55-1.3)÷0.5
=3.25÷0.5
=6.5