在横线里填上适当的数字.1. 3>1.23 7.1 <7.195.06>5. 5 0.004<0.0 4.
=21÷ = %== (填小数)
( )÷20===15:( )=( )%
=== ÷ .
= ÷5=0.8=4: = %= 折.
÷8=0.25= %= :16.