数的顺序、比较数的大小

,数的顺序,69,58,25,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,59,60,61,62,63,64,65,66,67,68,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,90,91,92,93,94,95,96,97,98,99,100,瞧，它们来了。,你认识他们吗？,数字王国的国王想知道参加大会的数到齐吗？,我们可以按一定规律把数排排队帮国王点名。,你有什么办法吗？,92,99,91,63,73,64,88,77,66,11,2,4,6,8,10,13,15,17,19,1,3,5,7,9,12,14,16,18,20,22,24,26,28,30,31,33,35,37,39,21,23,25,27,29,32,34,36,38,40,42,44,46,48,50,51,53,55,57,59,41,43,45,47,49,52,54,56,58,60,62,68,70,71,75,79,61,65,67,69,72,74,76,78,80,82,84,86,90,93,95,97,81,83,85,87,89,94,96,98,100,1,2,3,4,5,6,7,8,10,9,一,二,三,四,五,六,七,八,九,十,双数,单数,个位、十位上的数字相同。,从左上往右下看，十位和个位上的数都依次比上一行多1。,从右上往左下看（10除外），十位上的数依次多1，个位上的数依次少1。,百数表,（一）多种活动，探究规律,涂一涂：给十位是3的数涂上绿色；个位是3的数涂上黄色；个位和十位数字相同的数涂上粉色。,通过涂色，你发现了什么吗？你还发现什么新的规律了吗？,一、观察百数表，探索规律,第一PPT模板网-WWW.1PPT.COM,在百数图表中找出下框里另外几个数。,16,25,26,13,33,22,24,（二）依据规律，拓展提升,56,34,给数找家：请你把34和56送回家。,34,56,一、观察百数表，探索规律,第一PPT模板网-WWW.1PPT.COM,2,4,6,8,10,11,13,15,17,19,1,3,5,7,9,12,14,16,18,20,22,24,26,28,30,31,33,35,37,39,21,23,25,27,29,32,34,36,38,40,42,44,46,48,50,51,53,55,57,59,41,43,45,47,49,52,54,56,58,60,62,66,68,70,71,73,75,77,79,61,63,65,67,69,72,74,76,78,80,82,84,86,88,90,91,93,95,97,99,81,83,85,87,89,92,94,96,98,100,64,1,2,3,4,5,6,7,8,10,9,一,二,三,四,五,六,七,九,十,八,百数表,第4行第3列的数是多少？,第6行第8列的数数多少？,6,16,26,36,46,56,66,76,82,84,86,88,81,83,85,87,89,1,2,3,4,5,6,7,8,10,9,一,二,三,四,五,六,七,九,十,八,百数表,96,找出86在百数表中所处的位置。,看一看，填一填,36,38,40,60,50,90,100,填空，并回答问题。,70,71,72,76,79,77更接近70还是更接近80？72呢？,73,74,75,77,78,80,49,37,40,51,42,请把这些小鱼从小到