减法的初步认识

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,*,减法,的初步认识,3,5,8,2,7,9,7,3,4,8,2,6,7,3,4,-,=,减号,7,4,3,-,=,河里还剩几只？,上岸有几只？,？,？,8 - 6 = 2,8 - 2 = 6,游走了几条？,还剩下几条？,5,2,3,-,=,被减数,减数,差,8,3,5,=,-,8,5,3,-,=,看图列式,女同学有几个？,男同学有几个？,9 1 = 8,9 2 = 7,9 3 = 6,9 4 = 5,9 5 = 4,9 6 = 3,9 7 = 2,9 8 = 1,-,5,1,4,=,-,=,5,1,4,看图列式,-,=,-,=,看图列式,8,7,1,8,1,7,看图填数,6,6,-,7,7,-,5,2,第一排,第二排,第一排,第二排,比一比，看谁算得又对又快。,9-5= 8-2= 7-4= 7-5= 7- 6=,8+1= 5-3= 8-2= 3+2= 5-4=,6+2= 5-2= 8-3= 3+6= 9-7=,8-1= 5+2= 9-4= 8-4= 5+4=,4987,6237,2594,3655,1129,