信息窗四（公倍数和最小公倍数）

陈惠娟,公倍数和最小公倍数,叠色,1,2,3,4,5,6,7,8,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,4,4,8,12,16,20,24,28,32,36,40,44,48,52,56,60,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,6,6,12,18,24,30,36,42,60,54,48,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,4,6,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,4,4,8,12,16,20,24,28,32,36,40,44,48,52,56,60,6,6,18,30,42,54,4的倍数,6的倍数,4,8,16,20,28,32,40，,6,18,30,42,12,24,36,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,4,4,8,12,16,20,24,28,32,36,40,44,48,52,56,60,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,5,5,10,15,20,25,30,35,40,45,50,55,60,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,4,5,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,4,4,8,12,16,20,24,28,32,36,40,44,48,52,56,60,5,5,10,25,15,30,35,45,50,55,如何找两个数的最小公倍数？,1.自学P69。（找出求两个数的最小公倍数的方法）,2.小组讨论交流。（说一说你们找到哪些方法）,3.小组内每个组员轮流随机抽出两枚跳棋，用你们喜欢的方法求出它们的最小公倍数。,4.小组代表汇报。,这两路公共汽车同时发车后，过多少分钟两路车第二次同时发车？,6,10=30，所以过30分钟两路车第二次同时发车。,考考