Constructing Expressions with Order of Operations

Watch the video above and then try out some Khan Academy practice.
Need more?  Try out this lesson from Learnzillion.
Lesson and practice
Challenge Problem

Order of Operations Review
Review Variables and Expressions
Quiz on Variables and Expressions
Extra Practice Worksheets
Word Problems Practice

Order of Operations and Parenthesis

First, go back and remember how the order of operations works in math.  (personal tutor)

Then watch this video from Khan Academy.


Once you have watched the video, try practicing online.
One more example
Online practice
Millionaire Game
Self-Check Quiz