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Variable Expressions

Letters representing numbers in arithmetic 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.
• Video

Why is "x" the Unknown?

by CK-12 //basic
Terry Moore answers the question "Why do we use x in algebra?" in this video.
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• Video

Identifying Parts of an Expression - Overview

by CK-12 //basic
Overview
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• Video

Evaluating Expressions Given a Variable Value - Example 1

by CK-12 //basic
Evaluating Opposite Expressions Given a Variable Value
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• Video

Evaluating Expressions Given a Variable Value - Example 2

by CK-12 //basic
Evaluating Absolute Value Expressions Given a Variable Value
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• Video

Identifying Parts of an Expression - Example 1

by CK-12 //basic
Determining Parts as Like Terms, Constants, and Coefficients Given a Math Statement
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• Flashcards

Variable Expressions Flashcards

by CK-12 //basic
These flashcards help you study important terms and vocabulary from Variable Expressions.
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