人教版一年级数学下册《100以内数的顺序和比较大小》PPT课件-1.ppt

,数的顺序和比较大小,100,98,97,96,95,94,93,92,90,89,87,86,85,84,83,81,80,79,78,76,75,74,72,71,70,69,68,67,65,63,62,61,60,59,58,57,56,54,53,52,51,50,49,48,47,45,43,42,41,40,39,38,36,35,34,32,31,30,29,27,26,25,24,23,21,20,18,16,14,12,10,9,8,7,6,5,4,3,1,13,2,11,22,33,44,55,66,77,88,99,15,17,19,28,37,46,64,73,82,91,3,给十位是3的数涂上绿色,39,38,36,35,34,32,31,33,37,100,98,97,96,95,94,93,92,90,89,87,86,85,84,83,81,80,79,78,76,75,74,72,71,70,69,68,67,65,63,62,61,60,59,58,57,56,54,53,52,51,50,49,48,47,45,43,42,41,40,39,38,36,35,34,32,31,30,29,27,26,25,24,23,21,20,18,16,14,12,10,9,8,7,6,5,4,3,1,13,2,11,22,33,44,55,66,77,88,99,15,17,19,28,37,46,64,73,82,91,3,39,38,36,35,34,32,31,33,37,100,98,97,96,95,94,93,92,90,89,87,86,85,84,83,81,80,79,78,76,75,74,72,71,70,69,68,67,65,63,62,61,60,59,58,57,56,54,53,52,51,50,49,48,47,45,43,42,41,40,39,38,36,35,34,32,31,30,29,27,26,25,24,23,21,20,18,16,14,12,10,9,8,7,6,5,4,3,1,13,2,11,22,33,44,55,66,77,88,99,15,17,19,28,37,46,64,73,82,91,3,93,63,53,43,23,13,33,73,3,83,给个位是3的数涂上黄色,100,98,97,96,95,94,93,92,90,89,87,86,85,84,83,81,80,79,78,76,75,74,72,71,70,69,68,67,65,63,62,61,60,59,58,57,56,54,53,52,51,50,49,48,47,45,43,42,41,40,39,38,36,35,34,32,31,30,29,27,26,25,24,23,21,20,18,16,14,12,10,9,8,7,6,5,4,3,1,13,2,11,22,33,44,55,66,77,88,99,15,17,19,28,37,46,64,73,82,91,给个位和十位相同的数涂上粉色,11,22,33,44,55,66,77,88,99,100,98,97,96,95,94,93,92,90,89,87,86,85,84,83,81,80,79,78,76,75,74,72,71,70,69,68,67,65,63,62,61,60,59,58,57,56,54,53,52,51,50,49,48,47,45,43,42,41,40,39,38,36,35,34,32,31,30,29,27,26,25,24,23,21,20,18,16,14,12,10,9,8,7,6,5,4,3,1,13,2,11,22,33,44,55,66,77,88,99,15,17,19,28,37,46,64,73,82,91,你能从表里发现哪些有趣的排列？,第4行第8个数是多少?,55前面一个数是多少？,按照数的顺序填数,(1),(2),010()()()50()()()()(),32,29,28,30,31,33,20,30,40,60,70,80,90,100,25,42,70,79,88,97,53,64,魔力框,说出1100中个位上是5的所有的数。说出1100中十位上是5的所有的数。,猜一猜,在1100中，个位上是0的数一共有多少个？在第几列的位置上？个位上是1的数在第几列？十位上是9的数有多少个？在第几行的位置上？,填一填,比69大1的数是()，比69少10的数是（），比69多30的数在第（）列的位置上。,比100小1的数是()。,40比()大1，比()小1。,70,99,39,41,59,9,比一比,42,37,42里面有4个十。,37里面有3个十。,两位数比大小,先比十位，十位大的数大。,比一比,两位数比大小,先比十位，十位大的数大。,23,25,十位上的数一样，再比个位，个位上的数大的这个数大。,两位数比大小，先比十位，十位上的数大这个数就大。,39