一年级数学上册《几和几》.ppt

几和几,姜湾小学 黄伟荣,把圆分成两堆，怎么分？,3和1,2和2,1和3,4,1,3,4,2,2,4,3,1,4,3,1,4,1,3,4,2,2,3,2,4,1,4,3,2,4,1,4,把苹果分成两堆。,5,4,1,5,3,2,5,2,3,5,1,4,5,4,1,5,3,5,4,1,5,3,5,2,5,4,1,5,3,5,2,5,5,4,1,5,3,5,2,5,把相加得5的两个数连起来。,看图连线,看数连线,2,4,1,3,4,3,2,1,2,4,1,3,1,2,3,4,红花排第(),2,红花排第(),4,红花排第(),3,红花排第(),5,4,3,2,2,5,把左边的4只小鸟圈起来。,回首页,(3),(2),2,3,