0.6里面有 个十分之一,和它相邻的两个一位小数分别是 和 .
= :20=4.5÷ = %=0.5 .
15÷ ==9: = %=0.75.
9: ==36÷ = :45= (填小数)
%= ÷8==0.75= (填成数).
6÷ == :12=0.75= %