在下面的横线里填上“<”“>”或“=”.3.48×0.99 3.482.50 2.01.22 1.2×25.2÷0.01 5.2×100.
3÷4=== (小数).
.
: =0.8= ÷ = %.
6÷ = :24==0.75= %.
=75%=9÷ = :20= (填小数)