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 2nd Grade Algebra and Functions:  Standards and Practice Problem(s)
VoiceThreads
Mathcasts
2AF.1.0 Students model, represent, and interpret number relationships to create and solve problems involving addition and subtraction.

  
2AF.1.1 Use the commutative and associative rules to simplify mental calculations and to check results.
       

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2AF1-1

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2AF.1.2 Relate problem situations to number sentences involving addition and subtraction.

   
     Screencast.com - online viewing or download zip  
     Mathcasts.org - online viewing

       
     Screencast.com - online viewing or download zip
     Mathcasts.org - online viewing

      
     Screencast.com - online viewing or download zip
     Mathcasts.org - online viewing
   
      

2AF1-2

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2AF.1.3 Solve addition and subtraction problems by using data from simple charts, picture graphs, and number sentences.
      

2AF1-3

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Keywords: word problems 

 

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