# Order of Operations

## The order of operations outlines the order by which certain operatives should take place in a mathematical expression for it to remain true

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.

## Algebraic Properties

This lesson covers the properties of algebra and the Order of Operations.
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## Order of Operations with Negative Real Numbers

This concept reviews standard order of operations for arithmetic calculations involving negative real numbers.
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