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2018年秋七年级数学上册第1章有理数1.4有理数的乘除法1.4.1有理数的乘法第3课时有理数的乘法运算律（预习）课件（新版）新人教版.ppt

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第一章 有理数,1.4 有理数的乘除法 1.4.1 有理数的乘法,第一章 有理数,第3课时 有理数的乘法运算律,第3课时 有理数的乘法运算律,探究新知,活动1 知识准备,C,第3课时 有理数的乘法运算律,4.2,4.2,4,4,第3课时 有理数的乘法运算律,活动2 教材导学,15,15,72,72,1,1,第3课时 有理数的乘法运算律,(4)小学学过的乘法运算律(乘法交换律、乘法结合律、乘法分配律)在有理数的乘法中适用吗？,

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