Addition and Subtraction of Rational Numbers

Addition and Subtraction of Rational Numbers
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2012-02-28 17:09
This example demonstrates the addition and subtraction of rational numbers. Key mathematical concepts include rational numbers, addition, and subtraction. Using GeoGebra commands such as Point, Vector, Translate, etc., the process of addition and subtraction is dynamically illustrated. Suitable for middle school mathematics education.

GeoGebra Commands & Parameters

  1. Point(xAxis) → B
  2. Point(xAxis) → A
  3. Vector(O, B) → vec_{2eTerme}
  4. Translate(Vector[O, A], (0, 1.5)) → vec_{1erTerme}
  5. Text(t_1) → texte_{terme1}
  6. Text(t_2) → texte_{terme2}
  7. Translate(Vector[vec_{1erTerme} + vec_{2eTerme}], (0, -3)) → vec_{som}
  8. Translate(Vector[vec_{1erTerme} - vec_{2eTerme}], (0, -3)) → vec_{dif}
  9. Translate(O, Vector[vec_{som} + (0, -3)]) → C
  10. Translate(O, Vector[vec_{dif} + (0, -3)]) → C'
  11. Text("Somme=" + t_3) → texte_{CalculSom}
  12. Translate(Vector[-vec_{2eTerme}], A + (0, 3.2)) → v_2
  13. Point(xAxis) → A'
  14. Translate(vec_{2eTerme}, A + (0, 3.2)) → v_1