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一年级数学下册第1单元加与减（一）《买铅笔》习题（新版）北师大版.docx

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1买铅笔1、数一数，算一算，圈一圈。1、159=2、179=2、比一比，看谁先到终点。1、 142、 173、解决问题。一共有 16 只兔。一个笼子里装 9 只，另一个笼子里装几只？答案与解析一、1、6 2、8二、1、5 11 15 62、8 12 3 11三、16-9=7（只）-9 +6 +4 -9-9-9+4 +82

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