3rd Grade - Math - 3.NBT - Numbers and Operations in Base 10

Use place value understanding and properties of operations to perform multi-digit arithmetic

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3.NBT.1

Use place value understanding to round whole numbers to the nearest 10 or 100.

Web Games 
Number System
 

Notebook Files:
Rounding
Rounding with Numbers
Rounding with Ali
Rounding Numbers
Rounding Whole Numbers
Rounding with Ali 2

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3.NBT.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.

Web Games
Exploring Order

Notebook Files:

• Subtraction Review
  
• 2 Digit Number Computation
  
• Swat at the Facts
  
• Addition of Whole Numbers with Regrouping
  
• Solving for Variables in Number Sentences
  
• Math: Basic Addition with Algorithm
  
• Mental Math
  
• Snowman Subtraction
  
• Addition Meaning and Properties
  
• Everyday Math Fact Families
  

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3.NBT.3

Multiply one-digit whole numbers by multiples of 10 in the range 10–90 (e.g., 9 × 80, 5 × 60) using strategies based on place value and properties of operations.

Web Games

Notebook Files:
Extended Facts
Everyday Math 

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