0.53的计数单位是 ,它有 个这样的计数单位;把9.2改写成计数单位是0.001的小数是 .
=== ÷8= (填小数).
:30= %="0.6=1" 2÷ = (填分数)
:20==0.8= ÷15= %.
9:15==24÷ = %= (填小数)
4÷5= :40== %