This video appears on the page: Order of Operations (PEMDAS)

Intro to PEMDAS

In this video we'll introduce the concept of order of operations, explain what the heck PEMDAS is and how to use it, and work tons of examples evaluating expressions with this thing. We'll also cover tricky areas such as exponents of negative numbers, what to do about nested parentheses (parentheses within parentheses and brackets), and how fractions are PEMDAS in disguise.