840÷□,要使商是三位数,□最大填 ,最小填 .□75÷4,要使商是二位数,□可以填 .
==12÷ = (填小数)
=0.75=( )÷8( )%=24:( )
= :0.8=0.75= ÷12= %.
: =6÷( )==0.75.
== ÷10= 小数= :25.