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七年级数学上册第二章有理数2.2数轴1课件（新版）青岛版.ppt

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2.2 数轴(1),第二章 有理数,学校 ,11,0,-13,数轴,A：4,B：1.5,C：0,D：1.5,E：5,(1)3 (2)-3.5 (3) (4)0,数轴,原点,正方向,单位长度,直线,会用数轴上的点表示数；,会读出数轴上的点表示的数,

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