按从小到大的顺序排列:0.5 0.504 0.0 45 0.54 0.45 0.054 < < < < < .
女生与男生人数的比是5:8,男生人数是女生人数的160%. .
7÷ = :12=== (小数)= %
0.375= :8==6÷ = %
=4÷5=32: = %= 折.
=10÷ = ÷0.3=.