(768-68×11)÷10怎么简便?

问题描述:

(768-68×11)÷10怎么简便?

﹙768-68-68×10﹚÷10

﹙768-68×11﹚÷10
=﹙768-68-68×10﹚÷10
=﹙700 -68×10﹚÷10
=﹙70×10-68×10﹚÷10
=﹙70-68﹚×10÷10
=2

(768-68×11)÷10
=(768-68-680)÷10
=(700-680)÷10
=20÷10
=2

(768-68*11)/10
=(768-68-680)/10
=(700-680)/10
=20/10
2