珠心算6、7、8、9(课堂PPT).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,*,认识,6,、,7,、,8,、,9,1,2,3,双合 拨入,6,双分 拨去,6,6,4,5,7,拨入,7,拨去,7,6,7,8,拨入,8,拨去,8,8,9,9,拨入,9,拨去,9,10,11,看图拨珠,12,13,14,15,数译珠,16,17,18,看拨、想拨,19,听拨,6789,20,9876,21,6879,22,9786,23,