信息窗四(公倍数和最小公倍数).ppt

,子页,子页,子页,子页,子页题目,内容：,子页,子页,子页,子页,子页题目,内容：,子页,子页,子页,子页,子页题目,内容：,子页,子页,子页,子页,子页题目,内容：,内容：,子页题目,子页,子页,子页,子页,主页,子页,子页题目,子页,子页,子页,主页,子页,T,H,A,N,K,Y,O,U,北师大版 五年级上册 第五单元 分数的意义,问题,探究,练习,拓展,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,4,和,6,的公倍数有,。,4,和,6,的最小公倍数是,。,12,，,24,，,36,，,48,12,1.,在下表中用,“,”,标出,3,的倍数，用,“,”,标,出,5,的倍数。,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,哪些数上既标有,“,”,又标有,“,”,？这些数有什么特点？,2.,1,2,3,4,5,6,7,8,9,10,8,8,16,6,6,12,50,以内,6,和,8,的公倍数有,，,最小公倍数是,。,24,32,40,48,56,64,72,80,18,24,30,36,42,48,54,60,24,，,48,24,3.,想一想，填一填。,6,和,9,的最小公倍数是多少？,18,，,36,6,12,24,30,42,48,9,27,45,4.,求下面各组数的最小公倍数。,3,和,6,8,和,10,2,和,7,6,和,10,18,24,2,9,12,3,4,3,