0.40元和0.400元价值相等,它们的计数单位不相等. .
÷8==0.375=9÷ =; 填质数:21= + ; = × .
= %=2÷ =四成.
14÷ == ÷ = (填小数)
= ÷12= (填小数).
12÷ =0.75=.