(山西专版)2018年秋七年级数学上册第一章有理数1.2有理数1.2.1有理数课时训练(无答案)(新版)新人教版.doc

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11.2.1 有理数练习题基础练习1 “一个数,如果不是正数,那么一定是负数”这句话对不 对?为什么?2引入负数以后,我们学过的数有哪些?它们可以分成哪些种类?你是按照什么划分的?3把下列各数填入表示它所在的数集的圈里-17, ,3.1415,0.107,- ,-23 ,63%,-0.2正数集合 负数集合 整数集合 分数集合拓展提高1填空:(1)有理数中,是整数而不是正 数的是_;是负数而不是分数的是_(2)零是_,还是_,但不是_,也不是_(3)正整数、_和_统称 整数;_和_统 称分数;整数和分数统称_(4)既不是正数也不是负数的数是_,是正数而不是整数的数是_2把下列各数放在相应的 集合中10 -0.72,-2,0,-98,25, ,6 .3%,3.14整数集合 正数集合

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