有趣的百數(shù)表.ppt

1、有趣的百數(shù)表,77,找規(guī)律,11,91,2,22,82,13,33,73,4,44,64,15,55,6,46,66,8,28,88,19,99,10,17,37,77,寫一寫,十位是3的數(shù),1,11,21,31,41,51,61,71,81,91,2,12,22,32,42,52,62,72,82,92,3,13,23,33,43,53,63,73,83,93,4,14,24,34,44,54,64,74,84,94,5,15,25,35,45,55,65,75,85,95,6,16,26,36,46,56,66,76,86,96,8,18,28,38,48,58,68,78,88,98,9

2、,19,29,39,49,59,69,79,89,99,10,20,30,40,50,60,70,80,90,100,7,17,27,37,47,57,67,77,87,97,個位是3的數(shù),十位和個位相同的數(shù),涂一涂,3、13、23、 33、43、53、63、 73、83、93,11、22、33、 44、55、66、 77、88、99,30、31、32、 33、34、35、36、 37、38、39,（十位是3的數(shù)）,（個位是3的數(shù)）,（十位和個位相同的數(shù)）,33,33,33,讀一讀,1,11,21,31,41,51,61,71,81,91,2,12,32,42,52,62,72,82,92,3

3、,13,23,43,53,63,73,83,93,4,14,24,34,54,64,74,84,94,5,15,25,35,45,65,75,85,95,6,16,26,36,46,56,76,86,96,8,18,28,38,48,58,68,78,98,9,19,29,39,49,59,69,79,89,10,20,30,40,50,60,70,80,90,100,7,17,27,37,47,57,67,87,97,22,33,44,55,66,88,99,77,合作交流,橫 看,豎 看,斜 看,我問你答,考考你,20,30,40,60,70,80,90,63,64,65,67,68,70

4、,考考你,90,我比八十九多1,我是( )。,我是鴨后面第6個數(shù),我是( )。,我比企鵝的個數(shù)少1,我是( )。,我比企鵝的個數(shù)多1,我是( )。,96,95,97,考考你,1,11,21,31,41,51,61,71,81,91,2,12,22,32,42,52,62,72,82,92,3,13,23,33,43,53,63,73,83,93,4,14,24,34,44,54,64,74,84,94,5,15,25,35,45,55,65,75,85,95,6,16,26,36,46,56,66,76,86,96,8,18,28,38,48,58,68,78,88,98,9,19,29,39,49,59,69,79,89,99,