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Addition and Subtraction 2-3

Page history last edited by Marianne Dilworth 6 years, 7 months ago

Math Standards

2.1 Understand and use the inverse relationship between addition and subtraction. 

2.2 Find the sum or difference of two whole numbers up to 3-digits long. 

2.3 Use mental arithmetic to find the sum or difference of two two-digit numbers.

 

  

Ten Frames

 

Ten Frame - NCTM 

Addition

 

How Many Under the Shell? - practice addition or subtraction 

 

That's a Fact- practice addition facts to 20

 

Timed Addition Facts

 

Fact Dash

 

Addition MATHO

 

Add 9 Fairy

 

100 Hunt +9

    

Number Puzzle

 

Powerlines

 

Number Jump

Add and subtract to move the ball along the numberline to smash the bugs.

 

Speed Grid Challenge

 

Missing Number

 

Electronic Abacus

 

Addition Pyramid

 

Doubles

 

DoublesICT Games

 

Add Doubles to 20 - Math Playground worksheet

 

Add Doubles to 20 - Math Fact Cafe

 

Doubles Beyond 10

 

 

 

 

Subtraction 

 

Base 10 Subtraction

 

Timed Subtraction Facts

 

That's a Fact! - practice subtraction facts to 20

 

Subtraction Fishing Game

 

Subtraction Flashcards

 

Busy Bees - Figure out how many bees flew into the hive!

 

How Many Under the Shell? - practice addition or subtraction 

 

Subtraction Sense - drag the numbers to make a subtraction problem

 

High Rise Math - Play this game with a partner and see who makes it to the top first.

  

Number Jump

Add and subtract to move the ball along the numberline to smash the bugs.

 

Mummy Number Lines

 

Advanced Addition and Subtraction

 

Presentation

 

Adding and Subtracting Whole Numbers with Four Digits - Nutshell Math 

 

Practice

  

Drag and Drop Math - Mr. Nussbaum

 
     

 

 

 

difference of two two-digit numbers.

 

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