Los Angeles Math Circle
Upcoming Events
04/14High School Circle - Pick's Theorem and Earhart Theory II (Mo Omar)
04/14Intermediate Circle - Triangle Inequality I
04/21Intermediate Circle - Triangle Inequality II
04/28Intermediate Circle - A Different Look at Distance

9/30 -- Beginners Circle: Casting out Nines, and other types of Math Magic

In this lesson, we look at casting of nines as an application of modular arithmetic.
Modular Arithmetic, Division, Divisibility Rules.
Copyright © 2007-2012 Olga Radko/UCLA Department of Mathematics