20以内进位加法表幻灯片.ppt

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,*,20,以内进位加法表,太谷师范附小 安昀昀,1,4+8,9+2,6+5,8+6,9+8,7+6,5+7,3+8,6+5,5+8,3+9,2+9,2,9,2,9,3,9,4,9,5,9,6,9,7,9,8,9,9,8,3,8,4,8,5,8,6,8,7,8,8,8,9,3,9,2,9,3,9,4,9,5,9,6,9,7,9,8,9,9,8,3,8,4,8,5,8,6,8,7,8,8,8,9,7,4,7,5,7,6,7,7,7,8,7,9,6,5,6,6,6,7,6,8,6,9,5,6,5,7,5,8,5,9,4,7,4,8,4,9,3,8,3,9,2,9,1,2,4,动动眼,仔细观察这个表，你一定会发现很多规律的。,5,动动口,动动口动,动动口,（,1,）,说说表中两个相同数相加的算式,（,2,）,口算这些算式,8+5 9+7 7+6 9+2,5+8 7+9 6+7 2+9,6,动动手,（,1,）比一比,写出表中和是,13,的算式，看谁写得又对又快。,7,2,9,6,7,3,9,4,7,3,8,8,9,5,6,4,9,5,7,7,8,（,2,）比比谁的速度快,8,想一想,:,你会用下面的算式编应用题吗？,6+8,9,欢迎指导！,谢谢！,10,11,