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2nd Grade - Math - 2.NBT - Numbers and Operations in Base 10

Understand place value 
2.NBT.1 
Understand that the three digits of a three-digit number represent amounts of hundreds, tens and ones; e.g., 706 equals 7 hundreds, 0 tens and 6 ones. Understand the following as special cases:
Web Games

Math Jingle - Ten Tens

Finding Place Value

Understanding Place Value

Place Value 


Notebook Files:
Place Value
Place Value Opener
Place Value 2
Place Value Riddles
Place Value Practice
Three-Digit Place Value
Place Value to 100's
Understanding Place Value
Tens and Ones
Place Value Fun

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2.NBT.1a
100 can be thought of as a bundle of ten tens- called a “hundred.”
Web Games
Base Ten Number Line

Partitioning numbers  
Place Vale Party


Notebook Files:
Place Value
Place Value Riddles
Place Value Practice
Three Digit Place Value
Place Value to 100
Understand Place Value
Place value Fun
math Expanded Notation




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2.NBT.1b
The numbers 100, 200, 300, 400, 500, 600, 700, 800, 900 refer to one, two three, four, five, six, seven, eight, or nine hundreds (and 0 tens and 0 ones). 
Web Games
Place Value
What's Your Name??
Notebook Files:
Place Value
Place Value Opener
Place Value 2Place Value Riddles
Place Value Practice
Three-Digit Place Value
Place Value to 100's
Understand Place Value
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2.NBT.2
Count within 1,000; skip count by 5s, 10s and 100s.
Web Games
Counting Game 

Plus Ten


Notebook Files:
Skip Counting
Skip count: 2's, 5's 10's
Counting Beads
100 Chart Seek and Find
Everyday Math


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2.NBT.3
Read and write numbers to 1000 using base-ten numerals, number names, and expanded form.
Web Games
Read and Write Numbers 

Notebook Files:
  • Place Value
  • Place Value Opener
  • Place Value 2
  • Place Value 1-1000
  • Place Value Practice
  • 3 Digit Place Value
  • Place Value to 100
  • Understand Place Value
  • Tens and Ones




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2.NBT.4
Compare two three-digit numbers based on meanings of the hundreds, tens, and ones digits, using >, =, and < symbols to record the results of the comparisons.
Web Games
Compare Numbers
Regrouping 

Notebook Files:
  • Place Value
  • <,>, =
  • Comparing Numbers
  • The Greatest Treasure
  • Place Value Dice
  • Inequalities

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Use place value understanding and properties of operations to add and subtract
2.NBT.5
Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.
Web Games
Order of Operations 

Notebook Files:
  • Swat at the Facts
  • Apple Tree Subtraction
  • Estimation of Sums
  • Subtraction Strategies
  • Solving For Variable in Number Sentence
  • Basic Addition with Algorithm
  • Fact Family Houses
  • Math Shuffleboard
  • Addition/Subtraction Family of Facts
  • Double Digit Subtraction






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2.NBT.6
Add up to four two-digit numbers using strategies based on place value and properties of operations
Web Games


Dragable Math 

Notebook Files:
  • Swat at the Facts
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2.NBT.7
Add and subtract within 1000, using concrete models or drawings and strategies based on place value, properties of operations, and /or the relationship between addition and subtraction; relate the strategy to a written method. Understand that in adding or subtracting three-digit numbers, one adds or subtracts hundreds and hundreds, tens and tens, ones and ones; and sometimes it is necessary to compose or decompose tens or hundreds.
Web Games

Dositey Math

Notebook Files:
Subtraction Review
Regrouping Add/Subt.
Swat at the Facts
Apple Tree Subtraction
Estimation of Sums
Fact Family Houses
Understanding Subtraction
Math Shuffleboard
Math Add/Subt. Family Facts


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2.NBT.8
Mentally add 10 or 100 to a given number 100-900, and mentally subtract 10 or 100 from a given number 100-900.
Web Games
Bug Race 
Notebook Files:
2.NBT.9
Explain why addition and subtraction strategies work, using place value and the properties of operations.
Web Games
Online Math 
Notebook Files:
  • Subtraction Review
  • Regrouping in Add/Sub
  • Basic Addition with Algorithm

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