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# Addition and Subtraction Phrases as Expressions

## Use keywords to write verbal phrases as expressions.

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Addition and Subtraction Phrases as Expressions

Learn how to write addition and subtraction phrases as single variable expressions.
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## Addition and Subtraction Phrases as Expressions

Learn how to write addition and subtraction phrases as single variable expressions.
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## Review questions for: Addition and Subtraction Phrases as Expressions

Learn how to write addition and subtraction phrases as single variable expressions.
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• Video

## Introduction to Variables and Variable Expressions

by CK-12 //basic
Introduces variables and variable expressions.
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• Video

## Examples: Writing Variable Expressions

by CK-12 //basic
Presents three money-related examples of converting a real-life problem to a math equation.
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• Video

## Example 1: Writing Basic Algebraic Expressions

by CK-12 //basic
Provides two basic examples of writing algebraic express when one quantity is more or less than another.
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## Use of Symbols

by Kyle Bardman //basic
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• Flashcards

## Addition and Subtraction Phrases as Expressions

by Ellaine Chou //basic