单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,能被,2,、,5,整除的数,内容提要:复习、新授、练习、知识要点,操作导向:换页、出题(点击鼠标左键),2,1,2,3,4,5,6,7,8,9,10,10,4,6,2,8,12,14,16,18,20,个位,上是,0,、,2,、,4,、,6,、,8,的,数,都能被,2,整除。,练一练,下面哪些数能被,2,整除?,48 51 65,()()()(),104 153 280,()()()(),能,能,能,能,能,奇数,偶数,52,77,124,501,3170,4286,6003,6003,下面哪些数是奇数,哪些是偶数?把它们分别填入下面适当的圈里。,52,124,3170,4286,77,501,1,2,3,4,5,6,5,10,15,20,25,30,5,右圈里的数,都能被,5,整除吗?,这些数有什么特征?,个位上是,0,或者,5,的数,,都能被,5,整除,。,个位上是,0,或者,5,的数,,都能被,5,整除,。,个位上是,0,或者,5,的数,,都能被,5,整除,。,个位上是,0,或者,5,的数,,都能被,5,整除,。,做一做,下面那些数能被,2,整除,哪些能被,5,整除?,60 75 106 130 521,()()()()(),2,2,2,5,5,5,再见,再见,再见,