五下5的倍数特征市名师优质课比赛一等奖市公开课获奖课件.pptx

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,*,5 倍数特征,哪些数是 5 倍数?,学号是 5 倍数,同学请举手。,第1页,在下表中找出 5 倍数，并涂上颜色。看看有什么规律。,第2页,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,第3页,个位上是,_,或,_,数，是 5 倍数。,0,5,第4页,2 倍数,5 倍数,既是 2 倍数,又是 5 倍数,下面哪些数是 2 倍数?哪些数是 5 倍数?哪些数既是 2 倍数也是 5 倍数?,24,35,67,90,99,15,60,75,106,521,24,90,60,106,130,280,130,35,90,15,60,75,130,280,90,60,130,280,280,第5页,做完这道题，你有什么收获?,个位上是 0 数，既是 2 倍数，又是 5 倍数。,第6页,