在横线上填上“>”“<”或“=”.22×20 20×3021×40 201×432×30 10×69106×50 160×50120×30 12×30060×10 10×6615×400 210×418×400 108×40.
=0.4==12÷ = %= :25.
= (小数)= (百分数)=12: = 折.
0.75== ÷16=27: = %.
= : =33÷ = %
÷4=25%= : =8÷ = 折.