加减混合运算课件.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,*,加减混合运算,3+4-2,7+5-3,5,9,4,6,3,8,6,5,3,6,3,10,6,3,7,7,3,8,7,10,3,3,5,8,5,8,6,7,4,8,2,7,5,6,4,2,7,0,8,4,5,7,2,5,2,8,8,6,4,3,1,2,10,9,9,4,7,3,9,3,2,10,8,6,8,0,8,10,3,2,9,10,1、口算,2,4,6,4,2,6,6,4,2,6,2,4,2、看图列式,4,3,2,=5,4,2,3,=5,4,6,3,5,10,1,7,7,4,6,3=,8,5,4=,9,3,4=,2,7,8=,3、看看谁最棒,5,6,5,7,7,4,2=,6,1,2=,3,4,1=,6,3,4=,说说你的收获,