小林家住在三楼,他每上一层楼要走14级台阶,小林从一楼走到三楼要走多少级台阶?
3÷ ==0.75=6: = %
3÷ ==0.6=6: = %.
3:5==9: == .
=0.375=12÷ = %=0.45= %= ÷ .
= ÷ = = % ÷ =0.25== %