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Nelson Education > School > Mathematics K-8 > Mathematics 3 > Student Centre > Surf for More Math > Chptr 4 Lssn 3
 

 

Surf For More Math

Lesson 3 - Mental Addition and Subtraction

 

 

Mentally Adding 2-digit Numbers - Find the sum between the two numbers.

  Mentally Subtracting 2-digit Numbers - Find the difference between the two numbers.
   
   

 

 

 

 

 

 

 

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