一个两位小数用“四舍五入法”取近似值是8.4,这个数最大是 ,最小是 .
× =÷ = %= :0.125=四成.
== ÷9=44÷ .
=0.375= :16= %
0.6== ÷30= %
9÷ =0.75= :24= %= 折.