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# Single Variable Expressions

## Use symbols and operations to understand and define variables.

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.

## Single Variable Expressions

Find out how to evaluate single variable expressions.
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## Single Variable Expressions

Learn to understand variables and evaluate single variable expressions with given values.
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• PLIX

## Single Variable Expressions: Neighborhood Block

Single Variable Expressions Interactive
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## Dog Diets

Find out how to calculate how many calories your dog needs to eat per day.
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