In this video, Salman Khan of Khan Academy demonstrates the order of operations.
Khan Academy

6th grade math knowledge map info
StudyStack

In this video, Salman Khan of Khan Academy demonstrates the order of operations.
Khan Academy

This page starts with a basic description of Algebra and discusses the basic operations, and their order.
The Math Page

This is a virtual video of a whiteboard that explains with examples how to use PEMDAS to perform basic operations.
Math Playground

Definition of the Distributive Rule, with examples and interactive stepbystep solutions of multiple problems
The Math Page

In this Early Edge video lesson, you'll learn more about Order of Operations, so you can be successful when you take on highschool Math & Arithmetic.
The Princeton Review

These are the properties of multiplication and addition in beginning Algebra.
Basic Number Properties
