Funding for this project generously provided by Overdeck Family Foundation

### Arithmetic

Arithmetic is the branch of mathematics dealing with the addition, subtraction, multiplication and division of numbers. Such operations are important in trade, construction and other practical disciplines, and hence have been investigated and used by ancient civilizations dating back thousands of years. Over the millennia, the use and development of arithmetic has contributed to the invention of the decimal system and the creation of various tools to assist in computing calculations.