Select a task
Music Companies, Variation 2
Selling Computers
Tax and Tip
Friends Meeting on Bikes
Comparing Years
Chess Club
Finding a 10% increase
Buying Protein Bars and Magazines
Sand Under the Swing Set
Measuring the area of a circle
Gotham City Taxis
Two-School Dance
Anna in D.C.
The Price of Bread
How Fast is Usain Bolt?
Lincoln's math problem
Double Discounts