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口算 15 －9 = 6 17－9 = 8 12 －9 = 3 13 －9 = 4 18 －9 = 9 14 －9 = 5 方法 1： 15 -5=10 10 -4=6 方法 2： 10 -9=1 1+5=6 方法 3: 9+（6）=15 15 -9=6 2020 “锡慧在线”开学第一周 PPT模板下载：www. 1 ppt. com/moban/ 节日PPT模板：www. 1 ppt. com/jieri/ PPT背景图片：www. 1 ppt. com/beijing/ 优秀PPT下载：www. 1 ppt. com/xiazai/ Word教程： www. 1 ppt. com/word/ 资料下载：www. 1 ppt. com/ziliao/ 范文下载：www. 1 ppt. com/fanwen/ 教案下载：www. 1 ppt. com/jiaoan/ 字体下载：www. 1 ppt. com/ziti/ 行业PPT模板：www. 1 ppt. com/hangye/ PPT 素材下载：www. 1 ppt. com/sucai/ PPT 图表下载：www. 1 ppt. com/tubiao/ PPT 教程： www. 1 ppt. com/powerpoint/ Excel 教程：www. 1 ppt. com/excel/ PPT 课件下载：www. 1 ppt. com/kejian/ 试卷下载：www. 1 ppt. com/shiti/

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小羊学习班 6 7 8 13 －9 = 4 11 －9 = 2 14 －9 = 5 2020 “锡慧在线”开学第一周 PPT模板下载：www. 1 ppt. com/moban/ 节日PPT模板：www. 1 ppt. com/jieri/ PPT背景图片：www. 1 ppt. com/beijing/ 优秀PPT下载：www. 1 ppt. com/xiazai/ Word教程： www. 1 ppt. com/word/ 资料下载：www. 1 ppt. com/ziliao/ 范文下载：www. 1 ppt. com/fanwen/ 教案下载：www. 1 ppt. com/jiaoan/ 字体下载：www. 1 ppt. com/ziti/ 行业PPT模板：www. 1 ppt. com/hangye/ PPT 素材下载：www. 1 ppt. com/sucai/ PPT 图表下载：www. 1 ppt. com/tubiao/ PPT 教程： www. 1 ppt. com/powerpoint/ Excel 教程：www. 1 ppt. com/excel/ PPT 课件下载：www. 1 ppt. com/kejian/ 试卷下载：www. 1 ppt. com/shiti/

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小猴跳木桩 17 －9 =14 8 －9 = 5 16 －9 = 7 19 12 －9－9 =10= 3 15 －9 = 6 18 －9 = 9 11 －9 = 2 13 －9 = 4 PPT模板下载：www. 1 ppt. com/moban/ 节日PPT模板：www. 1 ppt. com/jieri/ PPT背景图片：www. 1 ppt. com/beijing/ 优秀PPT下载：www. 1 ppt. com/xiazai/ Word教程： www. 1 ppt. com/word/ 资料下载：www. 1 ppt. com/ziliao/ 范文下载：www. 1 ppt. com/fanwen/ 教案下载：www. 1 ppt. com/jiaoan/ 字体下载：www. 1 ppt. com/ziti/ 行业PPT模板：www. 1 ppt. com/hangye/ PPT 素材下载：www. 1 ppt. com/sucai/ PPT 图表下载：www. 1 ppt. com/tubiao/ PPT 教程： www. 1 ppt. com/powerpoint/ Excel 教程：www. 1 ppt. com/excel/ PPT 课件下载：www. 1 ppt. com/kejian/ 试卷下载：www. 1 ppt. com/shiti/

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十几减 9的退位减 11 － 9 = 2 14 － 9 = 5 17 － 9 = 8 12 － 9 = 3 15 － 9 = 6 18 － 9 = 9 13 － 9 = 4 16 － 9 = 7 2020 “锡慧在线”开学第一周 PPT模板下载：www. 1 ppt. com/moban/ 节日PPT模板：www. 1 ppt. com/jieri/ PPT背景图片：www. 1 ppt. com/beijing/ 优秀PPT下载：www. 1 ppt. com/xiazai/ Word教程： www. 1 ppt. com/word/ 资料下载：www. 1 ppt. com/ziliao/ 范文下载：www. 1 ppt. com/fanwen/ 教案下载：www. 1 ppt. com/jiaoan/ 字体下载：www. 1 ppt. com/ziti/ 行业PPT模板：www. 1 ppt. com/hangye/ PPT 素材下载：www. 1 ppt. com/sucai/ PPT 图表下载：www. 1 ppt. com/tubiao/ PPT 教程： www. 1 ppt. com/powerpoint/ Excel 教程：www. 1 ppt. com/excel/ PPT 课件下载：www. 1 ppt. com/kejian/ 试卷下载：www. 1 ppt. com/shiti/

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