Bruchrechnen I
4677099 / 5564391
Bruchrechnen I
Addition und Subtraktion
Die DVD beschäftigt sich mit: 1. Addieren gleichnamiger Brüche 1.1 Zähler und Nenner Wie rechnet man mit »gebrochenen« Zahlen, mit »Brüchen« also? Am einfachsten ist die Addition sogenannter gleichnamiger Brüche. Das sind Brüche, die denselben Nenner haben 1.2 Erste Schritte am Beispiel 1.3 Addieren am Beispiel 1.4 Was bedeutet »gleichnamiger« Bruch? 1.5 Was sind »ungleichnamige« Brüche? 2. Addieren ungleichnamiger Brüche 2.1 Zähler und Nenner 2.2. Erweitern auf den gemeinsamen Nenner 3. Subtrahieren gleichnamiger und ungleichnamiger Brüche 3.1 Vergleich mit der Addition Das Subtrahieren von Brüchen funktioniert wie das Addieren, nur dass wir jetzt die Zahlen nicht zusammenzählen, sondern abziehen. 3.2 Subtraktion beliebiger Brüche Gemeinsam mit den umfangreichen Arbeitsblätter ist die DVD sehr gut zum Einsatz im Unterricht geeignet.
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Curriculum-centred and oriented towards educational standards
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