“三百六十万八千零二十五”写作: ,改写成用“万”作单位的数是 万,省略万后面的尾数是 .
35: =0.625= ÷ = × .
= (小数)= (百分数)=12: = 折.
1=20.4÷( )=2=3.4= :0.5.
:200=8÷ =0.25== %
5:8==40÷ .