在横线里填上“>”“=”或“<”.7.2×0.9 7.2 1.04×3.57 3.57×0.14 5.24 5.24÷0.7 3.2÷0.01 3.2×0.01.
12: == :4=0.25= 折.
=2: =4÷ = %=0.2.
12÷ = :12=0.75= = %
0.75=6÷ = :12== %
1.75=7÷ ==28÷ =.