鸭的只数是鸡的
=5÷7
=7分之5
鸡的只数比鸭多
=(7-5)÷5
=5分之2
鸡和鸭的只数比是7:5,鸭的只数是鸡的( ),鸡的只数比鸭多( )
鸡和鸭的只数比是7:5,鸭的只数是鸡的( ),鸡的只数比鸭多( )
数学人气:209 ℃时间:2020-03-25 05:09:46
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