II.2. Rechengesetze und Rechenvorteile: Unterschied zwischen den Versionen

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Zeile 11: Zeile 11:
  
 
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Zeile 17: Zeile 17:
 
'''Man sieht: a + b = b + a'''
 
'''Man sieht: a + b = b + a'''
 
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<br />
 
<br />
 
<br />
 
<br />
Zeile 24: Zeile 24:
 
::&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'''(a + b) + c = a + b + c'''
 
::&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'''(a + b) + c = a + b + c'''
 
<br />
 
<br />
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framePossible = "false" showResetIcon = "false" showAnimationButton = "true" enableRightClick = "false" errorDialogsActive = "true" enableLabelDrags = "false" showMenuBar = "false" showToolBar = "false" showToolBarHelp = "false" showAlgebraInput = "false" allowRescaling = "true" useLocalJar = "true" />
  
 
</div>
 
</div>

Version vom 30. Juni 2011, 15:39 Uhr

 

II. Addition und Subtraktion natürlicher Zahlen:

1. Addieren und Subtrahieren - 2. Rechengesetze und Rechenvorteile - 3. Terme


Erklärung





Zum besseren Verständnis kannst du auch noch einmal selbst das Kommutativgesetz erproben. Ziehe die Schieberegler!
Man sieht: a + b = b + a



Und hier kannst du das Assoziativgesetz besser verstehen: Ziehe die Schieberegler!
Man sieht: (a + b) + c = a + (b + c)

     (a + b) + c = a + b + c



  Aufgaben

Aufgaben


II. Addition und Subtraktion natürlicher Zahlen:

1. Addieren und Subtrahieren - 2. Rechengesetze und Rechenvorteile - 3. Terme