What are some examples of “clock arithmetic”?

More About Numbers Read more from
Chapter Math Basics

As stated above, the clock would be considered arithmetic modulo, with calculations including such statements shown below (Note: In all of the first calculations, the equal sign can be replaced with the congruence sign =, or three lines instead of the two for an equal sign.):


This is a web preview of the "The Handy Math Answer Book" app. Many features only work on your mobile device. If you like what you see, we hope you will consider buying. Get the App