快乐的小鸭,7+（ ）=13 7+（ ）=12 7+（ ）=14 7+（ ）=11 7+（ ）=17 7+（ ）=15 7+（ ）=10 7+（ ）=16,6,7,8,3,5,4,8,9,PPT模板下载：www.1ppt.com/moban/ 行业PPT模板：www.1ppt.com/hangye/ 节日PPT模板：www.1ppt.com/jieri/ PPT素材下载：www.1ppt.com/sucai/ PPT背景图片：www.1ppt.com/beijing/ PPT图表下载：www.1ppt.com/tubiao/ 优秀PPT下载：www.1ppt.com/xiazai/ PPT教程： www.1ppt.com/powerpoint/ Word教程： www.1ppt.com/word/ Excel教程：www.1ppt.com/excel/ 资料下载：www.1ppt.com/ziliao/ PPT课件下载：www.1ppt.com/kejian/ 范文下载：www.1ppt.com/fanwen/ 试卷下载：www.1ppt.com/shiti/ 教案下载：www.1ppt.com/jiaoan/,草地上还有多少只鸭子？,算一算,11 - 7=,1,4,3,10,算一算,12 - 7=,2,5,3,10,算一算,13 - 7=,3,6,3,10,算一算,14 - 7=,4,7,3,10,算一算,15 - 7=,5,8,3,10,算一算,16 - 7=,6,9,3,10,117,127,137,147,157,167,177,4,5,6,7,8,9,10,4,3,2,4,3,5,4,6,5,12 7 = ,5,一起来填表格,8,9,6,10,7,5,3,一起来填表格,9,5,8,4,7,3,6,10,2,