78.8-36-780%简便运算

问题描述:

78.8-36-780%简便运算

78.8-36-780%
=78.8-36-7.8
=35
祝你学习进步!
不理解请追问,理解请及时采纳!(*^__^*)

78.8-36-780%
=78.8-36-7.8
=(71+7.8)-36-7.8
=71-36+(7.8-7.8)
=35

78.8-36-780%
=78.8-36-7.8
=78+0.8-36-7-0.8
=(78-36-7)+(0.8-0.8)
=35

∵780%=7.8
∴78.8-36-7.8
=71-36
=35

祝你学习进步,如果满意请选为满意回答哟O(∩_∩)O