Holiday Hours Notice:
Our Sales Representatives will be away from December 12 to January 4.
Our support staff will be available through Friday, December 19, and normal service resumes January 5.
Thank you for your understanding during our seasonal slowdown, and hopefully you too will enjoy a break.
Class 301 is holding a school sale to buy a super-calculator. The class uses subtraction to find out how many items have been sold. They use column subtraction to figure out differences in different ways, as well as a number line. Simple sentences and easy-to-understand exercises help make learning about subtraction understandable and fun.