老师准备出20条谜语,都有可能被淘气猜中. .(判断对错)
÷8==0.5= :40= %.
5:8== ÷40= (小数)= %.
3÷ ===0.75.
2÷ =8: =0.75= %= .
20%= ÷40=40: = [填小数]=× .