,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,*,6和7的加减法,复习题,6,2,6,4,5,1,3,2,7,5,3,4,6,7,4,6,6,3,2,7,1,复习,3+2=,5,2+3=,5,5+1=,6,1+5=,6,4+3=7,3+4=7,4+3=7,3+4=7,7,3=4,7,4=3,7,3,=,4,7,4=3,4+3=7,3+4 =7,4,2=6,2,4=6,6-4=2,6 2=4,7,2=5,7,5=2,5+2=7,2+5=7,摆一摆。,4+2 =,2+=,6,-,2 =,6,-,=,6,4,4,6,4,2,5+2 =,2+=,7,-,2 =,7,-,=,2,5,5,7,5,7,3+=,6,-,3 =,想一想。,3,6,3,找朋友,7-2,4+3,6-3,7-4,6-2,1+6,5-0,7-3,2+4=,7,-,3=,3+4=,1+6=,4+3=,7,-,4=,6,-,5=,6,-,1=,4+2=,3,6,7,5,7,6,1,7,4,智慧乐园,4+2=()4+3=(),()+2=7 3+()=6,7-()=4 6-()=1,6-4=()7-5=(),0+()=6 ()-6=1,6,7,5,3,3,5,2,2,6,7,