有理数知识点总结
下面是小编为大家整理的有理数知识点总结,本文共20篇,仅供大家参考借鉴,希望大家喜欢,并能积极分享! 有理数知识点总结归纳 1、正数和负数的有关概念 (1)正数:比0大的数叫做正数; 负数:比0小的数叫做负数; 0既不是正数,也不是负数。 (2)正数和负数表示相反意义的量。 2、有理数的概念及分类 3、有关数轴 (1)数轴的三要素:原点、正方向、单位长度。数轴是一条直线。 (2)所有有理数都可以用
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