在跳远比赛中,小丁跳了3.5米,小强跳了2.6米,小美跳了4米, 跳得最远.
9: ==3÷5.
3÷4==27: = (填小数)= %.
÷4==0.25= :8.
=9÷ = :8== (填小数)
3: ==15÷ = ×= (小数).