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2018年秋七年级数学上册第1章有理数1.3有理数的加减法1.3.1有理数的加法第1课时有理数的加法法则（预习）课件（新版）新人教版.ppt

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第一章 有理数,1.3 有理数的加减法 1.3.1 有理数的加法,第一章 有理数,第1课时 有理数的加法法则,第1课时 有理数的加法法则,探究新知,活动1 知识准备,7,3,0,第1课时 有理数的加法法则,活动2 教材导学,有理数的加法 阅读教材P16P18思考及探究，完成下列表格：,137,20,137,6,137,6,137,20,208,12,

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