①
=20÷50=10: = %= 成= 小数
② ÷16=
=12.5%= : = 小数
③0.75=
= :12=6÷ = %
④0.6=
=
= %= :5
⑤
=0.125= :32=8÷ = %
⑥ ÷20=6÷8=
=
= :4
⑦0.25=
= %= ÷ = :
⑧
=0.6=6÷ = : = %= 成.