Section 5: Order of Operations

It is important to watch the video first.

The phrase "Please Excuse My Dear Aunt Sally" is used by many students to remember the Order of Operations. The order in which operations should be performed is given below:

Parentheses - Operations within parentheses and other groups should be simplified before all other operations.
Exponents - Exponents and Roots should be simplified. Work these from left to right.
Multiplication and Division - Operations involving multiplication and division should be simplified. Work these left to right.
Addition and Subtraction - The last operations to be simplified are addition and subtraction. Work from left to right.

Test Your Knowledge by opening up the Test Yourself Activity.

For more information about the TSI Assessment and how to register, visit https://www.hccs.edu/resources-for/current-students/testing-services/ or email hcc.testing@hccs.edu