一根绳子长1米,用去米,还剩原来长度的. .(判断对错)
= : =75%=3÷ = .(填小数)
10÷ = :75== %= (填小数).
÷4=2=3=.
÷ = %=0.375=.
3: ==24÷ = %=五折=.