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Fluently add and subtract within 1000 using strategies and algorithms

Page history last edited by Nick Pyzik 6 years, 5 months ago

 

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CCSS.MATH.CONTENT.3.NBT.A.2

 

 

     

LEARN 

Learn about adding and subtracting whole numbers within 1000.

Solve addition problems with numbers up to 1,000: regrouping  Solve addition problems using partial sums  Solve subtraction problems using regrouping

Solve subtraction problems using a number line

Use place value strategies to add and subtract 

 

 

 

 

 



 
     

PRACTICE 

 

Practice adding and subtracting whole numbers within 1000.

Use decomposition and regrouping to add


 Decomposing to add on a number line

 Counting up and decomposing to solve a subtraction problem

 Comparing strategies of addition and subtraction to look for efficiency 

Choose the most efficient strategy to solve a word problem
 

 

 
     

 


STUDENT SELF-ASSESSMENT

CLICK HERE TO DOWNLOAD THE STUDENT SELF-ASSESSMENT 

 

CCSS.MATH.CONTENT.3.NBT.A.2
Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.