要使8□3÷85的商是两位数,□里最小可填 ,要使商是一位数,□里最大可填 .
= ÷ =0.8= %= :10.
=65%= ÷20=26: = (小数)
: == ÷6=6÷ .
= : ==6÷ = %
9:24=3: =3÷ == %.