横线里最大能填几?25× <177 34× <29845× <320 54× <46066× <600 76× <642.
8÷7改写成比是______,用分数表示是______。
8÷______==2:______=0.4=______%=______成.
5:4=______÷20=______%=
9÷______=75%=______:8==______(填小数)
=______÷______=60%=______:______=______小数.