单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,小小运动会,20,以内的进位加法,同学们你们会计算下面各式吗？,6,2,5,3,4,3,4,2,4,5,6,3,8,8,7,6,9,9,+,=,例,1.,一共有几瓶牛奶？摆一摆，说一说。,9,+,5,=,14,1,4,10,9,+,5,=,14,5,4,10,9,+,5,=,1,4,10,14,9,+,5,=,4,5,10,14,李强的方法：,小雪的方法：,9,1,5,9,6,9,1,7,9,8,9,1,8,9,9,9,1,6,9,7,15,15,18,18,17,17,16,16,（个）,8,17,9,一共有多少个贝壳？,已经穿上了,9,个。,一共有几棵树？,例,2,我把,6,分成,2,和,4,。,8+6=,14,2,4,?,10,我把,8,分成,4,和,4,。,8+6=,4,4,14,?,10,8,2,10,10,4,14,4,6,10,10,4,14,8,3,8,6,11,14,圈一圈，算一算。,5+8=,13,1,号运动员一共投了多少个？,你还能提出什么问题？,我投中,7,个。,停，,1,分钟时间到。,？,我投中,6,个。,我投中,5,个。,例,3,1,号运动员一共投了多少个？,7,4,11,3,1,10,7,4,（个）,11,7,3,10,10,1,11,我这样算,2,号运动员一共投了多少个？,（瓶）,6,5,11,（个）,7,14,7,一共有多少个小朋友？,捉迷藏的有,7,人。,7,11,12,13,4,5,6,6,10,11,12,4,5,6,6,+,2,=,8,6,+,3,=,9,6,+,4,=,10,6,+,5,=,11,6,+,6,=,12,6,+,7,=,13,6,+,8,=,14,6,+,9,=,15,7,+,3,=,10,7,+,4,=,11,7,+,5,=,12,7,+,6,=,13,7,+,7,=,14,7,+,8,=,15,7,+,9,=,16,谢谢大家！,敬请各位老师提出宝贵意见！,