10个小朋友排成一队去看电影，从前面数起，小华是第5个，从后面数起，小华是第 个．
= ：15=15÷ = %=0.6．
==8÷2==36÷ ．
==18÷ =．
÷40==0.375=9÷ =．
÷5== （填小数）=15÷ ．
= ：15=15÷ = %=0.6．
=
=8÷2=
=36÷ ．
=
=18÷ =
．
=0.375=9÷ =
．
= （填小数）=15÷ ．
粤公网安备 44130202000953号