II.1. Addieren und Subtrahieren: Unterschied zwischen den Versionen
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− | '''Hier kannst du das Addieren besser verstehen, indem du | + | '''Hier kannst du das Addieren besser verstehen, indem du mit den Schieberegler die Summanden veränderst.''' |
<br /><br /> | <br /><br /> | ||
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Zeile 18: | Zeile 18: | ||
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− | '''Und hier kannst du das Subtrahieren besser verstehen, indem du | + | '''Und hier kannst du das Subtrahieren besser verstehen, indem du mit den Schieberegler Minuend und Subtrahend veränderst.''' |
<br /><br /> | <br /><br /> | ||
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Zeile 113: | Zeile 113: | ||
<div class="multiplechoice-quiz"> | <div class="multiplechoice-quiz"> | ||
− | '''''Für die | + | '''''Für die Fleißigen''''' |
Wie viel ist 1010-101? | Wie viel ist 1010-101? |
Version vom 6. Oktober 2011, 15:01 Uhr
II. Addition und Subtraktion natürlicher Zahlen:
Erklärung
Hier kannst du das Addieren besser verstehen, indem du mit den Schieberegler die Summanden veränderst.
Und hier kannst du das Subtrahieren besser verstehen, indem du mit den Schieberegler Minuend und Subtrahend veränderst.
Aufgaben
Bewegt man sich am Zahlenstrahl nach links, so subtrahiert man. Bewegt man sich am Zahlenstrahl nach rechts, so addiert man. Demnach bewegt man sich bei 5-3 nach links und bei 5+3 nach rechts.
Rechne im Kopf!
Für die Fleißigen Wie viel ist 1010-101? (! 919) ( 909) (! 982) Addiere 5777 zu 6845! (! 15622) (! 12672) ( 12622)
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II. Addition und Subtraktion natürlicher Zahlen: