一个两位小数,“四舍五入”后的近似值是5.0,这个两位小数最大是 ,最小是 .
÷10=0.8= : == %
÷ =0.375== :32= %
2:5= :10=10÷ = (填小数)
0.4= : =10: = :35= %
=20÷ =8: =0.8= %= .