This PowerPoint includes 37 slides with 35 questions and explanations. There are hyperlinks to all of the questions as well as animations. Each of the question slides has an explanation of the problem as well as a hyperlink back to the home page. It is a great way to review with students and have everyone involved. The questions vary in difficulty assuring that everyone has the opportunity to be challenged. My 5th graders loved it and asked to play during their free time.