# Mathematical Expressions

## Write variable expressions to represent word problems

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.

## Translate Verbal Phrases into Variable Expressions

Learn to change words into variable expressions.
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## Order of Operations

Evaluating numerical expressions by following the order of operations.
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## Order of Operations (1.3)

Evaluating numerical expressions by following the order of operations.
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## Order of Operations

Evaluating numerical expressions by following the order of operations.
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## Order of Operations

Evaluating numerical expressions by following the order of operations.
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0

## Order of Operations

Evaluating numerical expressions by following the order of operations.
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0

## Order of Operations

Evaluating numerical expressions by following the order of operations.
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## Order of Operations (PEMDAS)

Evaluating numerical expressions by following the order of operations.
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• PLIX

## Mathematical Operators

Mathematical Expressions Interactive
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• Video

## Writing Basic Algebraic Expressions

Explains how to convert algebraic equations to phrases. The video also shows the different ways to expresses multiplication algebraically.
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• Activity