10以内数的认识与加减法,整理与复习ppt课件

10以内数的认识与加减法,整理与复习,1,下图，一共有（）朵花。从左数排在第（），从右数排第（）。,10,7,4,一、复习序数,2,1,2,3,4,5,6,7,8,9,10,我家住在7层。,小明,小聪,我家在李老师家楼下一层,李老师,我家在李老师家上面一层,小明在层小聪在层,3,二、复习数的组成,填一填：课本78页第2题,8,3,7,5,10,2,9,6,4,10以内的加法,1,小组讨论：细仔观察表里加法式题是怎么排列的？先讨论交流再根据规律把表补完整。,5,10以内的加法,返回,6,10以内的加法,1,2,3,4,5,6,7,8,9,10,3,4,4,5,5,5,6,6,6,6,7,7,7,7,7,8,8,8,8,8,8,9,9,9,9,9,9,9,10,10,10,10,10,10,10,10,返回,7,10以内的加法,返回,8,10以内的减法,说一说：,研究表里减法算式是怎样排列的？小组先讨论交流找出规律。,9,10以内的减法,21,31,41,51,61,71,81,91,101,102,103,104,92,82,72,62,52,42,93,83,73,105,94,32,10,10以内的减法,21,31,41,51,61,71,81,91,101,102,103,104,92,82,72,62,52,42,93,83,73,105,94,32,43,11,10以内的减法,21,31,41,51,61,71,81,91,101,102,103,104,92,82,72,62,52,42,93,83,73,105,94,32,43,53,12,10以内的减法,21,31,41,51,61,71,81,91,101,102,103,104,92,82,72,62,52,42,93,83,73,105,94,32,43,53,63,13,10以内的减法,21,31,41,51,61,71,81,91,101,102,103,104,92,82,72,62,52,42,93,83,73,105,94,32,43,53,63,54,14,10以内的减法,21,31,41,51,61,71,81,91,101,102,103,104,92,82,72,62,52,42,93,83,73,105,94,32,43,53,63,54,64,15,10以内的减法,21,31,41,51,61,71,81,91,101,102,103,104,92,82,72,62,52,42,93,83,73,105,94,32,43,53,63,54,64,74,16,10以内的减法,21,31,41,51,61,71,81,91,101,102,103,104,92,82,72,62,52,42,93,83,73,105,94,32,43,53,63,54,64,74,84,17,10以内的减法,21,31,41,51,61,71,81,91,101,102,103,104,92,82,72,62,52,42,93,83,73,105,94,32,43,53,63,54,64,74,84,65,75,85,95,106,107,108,109,96,86,76,97,97,98,小组讨论：细仔观察表里减法式题是怎么排列的？先讨论交流找出规律。,18,19,一、争当计算小能手,6+3=5+4=9-1=,7-0=,9,9,8,7,6+3-2=4+4+2=9-4-2=,7,10,3,20,二、争当填空小能手,1、在（）里填上合适的数。（）4=102（）=9（）3=84（）=8（）9=16（）=2,6,5,10,7,4,4,21,三、在里填上“”、“”或“”。884220439645542085,=,=,22,继续加油！,（1）7和2合起来是（）。（2）10减去3得（）。（3）7比5大（）。（4）7比8小（）。（5）6可以分成（）和（）。（6）3和6组成（）。,9,7,2,1,1,5,9,23,四、看图列式小强手,24,25,26,541=10,27,943=2,28,342=5,29,五、拜访老师。,教师宿舍楼,101,102,103,104,105,106,107,108,201,202,20