把0.123,0.,0.1,0.12,按照从小到大的顺序排列: < < < .
8:20= ÷ =4: = (填小数)= %
:20==32÷ = %= 成.
8÷ = :4=0.25== %
3:8== ÷24= %.
:20=0.25== %.