| Addition and Subtraction |
| Addition and Subtraction |
| | BBC - Addition
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| | An animated introduction to addition! |
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| | BBC - Subtraction
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| | An animated introduction to subtraction! |
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| | Written Addition and Subtraction
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| | From BBC Skillswise - great factsheets, activities, worksheets and online games to help you with written addition and subtraction! |
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| | Mental Addition and Subtraction
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| | From BBC Skillswise - great factsheets, activities, worksheets and online games to help you to do addition and subtraction in your head! |
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| | Adding Wholes and Decimals
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| | Learn the answers to the following questions with this great lesson: What is addition with regrouping?
In a written calculation, how do we align the numbers? |
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| | The Meaning of Subtraction
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| | Learn about subtrahends, minuends, strategies for mental subtraction - and much more! |
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| | AAA Math - Addition
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| | Dozens of demos and activities on Addition! |
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| | AAA Math - Subtraction
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| | Dozens of demos and activities on subtraction! |
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| | Addition of 2, 3, and 4-Digit Numbers with Carrying
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| | An Audio/Visual tutorial from Mc-Graw Hill! See a Shockwave-Based worked example, and then try some sample problems to test your skills! |
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| | Bee Hive
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| | A great flash game! How many bees went into the hive? Solve the problems to find out. |
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| | 2-Digit Subtraction with Borrowing
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| | An Audio/Visual tutorial from Mc-Graw Hill!
See a Shockwave-Based worked example, and then try
some sample problems to test your skills! |
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| | Math.com - Adding and Subtracting Integers
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| | Learn all about adding and subtracting with integers from Math.com! |
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| | Adding & Subtracting Positive and Negative Numbers
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| | Adding and subtracting numbers are really the act of combining numbers or the amounts they represent. To see how closely they are related, look at some examples and perhaps challenge some beliefs you may have about both processes.
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| | Addition of Two 2-Digit Numbers without Carrying
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| | An Audio/Visual tutorial from Mc-Graw Hill!
See a Shockwave-Based worked example, and then try
some sample problems to test your skills! |
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| | Addition of Integers - LearningWave
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| | An illustrated tutorial on adding whole numbers - complete with interactive practice exercises! |
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| Properties of Addition and Subtraction |
| | Properties of Addition
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| | A great interactive page that explores several properties of addition! |
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| | Commutative and Associative Properties of Addition
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| | An illustrated overview of these properties of addition. |
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| | Commutative Property
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| | The commutative property of addition tells us that the order in which 2 numbers are added does not change the sum of those 2 numbers. Check out this site to learn more! |
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| | Glossary of Properties
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| | From Dr. Math, a great overview of operations and properties - including commutative, associative, distributive, identity, and more. |
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| | Number Properties
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| | There are three basic number properties (or laws) that apply to arithmetic operations: Commutative Property, Associative Property and Distributive Property. Learn about them here! |
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| | Properties of Addition
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| | An online slideshow that explores the basic properties of addition. |
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| | Properties of Real Numbers
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| | A nice table that describes each property, plus some practice exercises. |
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| | Additive Property of Zero
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| | An illustrated tutorial on the identity property. |
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| | Commutative Property of Addition
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| | A brief glossary entry that details the commutative property of addition. |
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