五年级数学下册第2章因数与倍数1因数与倍数例3课件新人教版.ppt

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1、24的因数有哪些?49呢?,24124,24212,2438,2446,14949,7749,24的因数有哪些?49呢?,24的因数有:1,2,3,4,6,8,12,24。,49的因数有:1,7,49。,2的倍数有哪些?,2的倍数有:2,4,6,8,10,,221,422,623,824,1025,212,224,236,248,2510,212,224,236,248,2510,2612,6,8,10,12,2的倍数有哪些?,3的倍数有哪些?5呢?,3的倍数有:3,6 ,9,12,15,5的倍数有:5,10,15,20,25,313,326,339,3412,3515,515,5210,53

2、15,5420,5525,2的倍数有:2,4,6,,3的倍数有:3,6,9,12,15,5的倍数有:5,10,15,20,25,1.写出下面各数的倍数(各写出5个)。,4 7 10 6 9,4的倍数有:4,8,12,16,20,7的倍数有:7,14,21,28,35,10的因数有:10,20,30,40,50,6的倍数有:6,12,18,24,30,9的倍数有:9,18,27,36,45,2.教材第7页练习二,第4题。,15的因数有哪些?15是哪些数的倍数?,15的因数有:1,3,5,15。,15是1,3,5,15的倍数。,第7页练习二,第3题。 第8页练习二,第7题、第8题。,xx小学 x年级x班,xxx,

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