• 学生初次接触到负数概念时,理解负数意义有理数运算法则都会产生困难

    When first meet negative numbers, students have difficulty understanding both the meaning of negative numbers and the rules of operation between rational numbers.

    youdao

  • 学生初次接触到负数概念时,理解负数意义有理数运算法则都会产生困难

    When first meet negative numbers, students have difficulty understanding both the meaning of negative numbers and the rules of operation between rational numbers.

    youdao

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