玲玲用去的钱,明明用去的钱,都买了同二本书,玲玲带的钱比较多. .(判断对错)
=27÷ ==6: = (小数)
15: =0.6= 折.
3:2可以写成,仍读作3比2. .
6÷ ==== (填小数)
35: = :40==28÷ = (填小数)