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绝对值既是初中数学中的一个重要概念,又是初一有理数中的一个难点.为使同学们能深刻理解、牢固掌握.学习时应抓住以下要点:
Absolute value is not only an important concept in junior high school mathematics, but also a difficult point in first grade rational numbers. In order to enable students to understand and firmly grasp, we should grasp the following points when learning: