9÷2=4…1,如果被除数、除数都扩大100倍,那么商是 ,余数是 .
÷ ==3: = :24= (填小数)
0.12=== ÷ =24: .
:5=== ÷25= (写小数).
12÷ ==0.375= :64= ÷24.
=== ÷ = (小数)