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数学一年级上册8 20以内的进位加法9加几教课内容ppt课件
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这是一份数学一年级上册8 20以内的进位加法9加几教课内容ppt课件,共15页。PPT课件主要包含了加几就等于十几,摆一摆算一算,凑十法,凑大数分小数等内容,欢迎下载使用。
9+( )=10
9 + 1 + 1 =
9 + 1 + 7 =
9 + 5 =
9 + 7 =
9 + = 19 + = 19 + = 19 + = 19 + = 19 + = 19 + = 19 + = 1
9 + 2 = 119 + 3 = 129 + 4 = 139 + 5 = 149 + 6 = 159 + 7 = 169 + 8 = 179 + 9 = 18
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