8×9=()×9+9=()×9+()×9+27 18÷()=63÷()=36÷()=9
(1)9/2÷27=6/2÷18=3/2÷9=1/2÷()=()÷()=
( )÷8=9÷( )=( )分之27=0.75
():8=0.25=9÷()=27:()=四分之?
3/5=9/15=27/45=18÷()=()填小数
()÷36=1/3=9:()=12:()=24分之()
8/9÷4就是求8/9的几分之几是多少,8/9÷9=( )
():20=4分之3=12÷()=9:()=():18
0.5:3分之2=9÷( )=( )%
8分之()=9分之()=6÷()=()÷( )=0.375(怎样简便计算!&)
()/15=()÷27=():9=1/3
( )÷8=( )分之9=0.75=( ):20=( )%
•( ):4=0.75=9÷( )=( ):8=( )分之1