( ):20=( )15=0.8=24÷( )=()%=( )折.
问题描述:
( ):20=
=0.8=24÷( )=()%=( )折. ( ) 15
答
16:20=
=0.8=24÷30=80%=八折.12 15
故答案为:16,12,30,80,八.