儿童画册有6本。科技书39.2元。一共是87.8元。每本儿童画册多少钱？

Question

如题所述

Answer 1

(87.8-39.2)÷6
=48.6÷6
=8.1(元)

Answer 2

(87.8-39.2)/6=8.1

Answer 3

(87.8-39.2)/6
=48.6／6
=8.1元