## Month in Review – July 2012

It’s the end of the month again. In case you missed some posts, here is the complete list of posts for July 2012. Enjoy reading! Month in Review Introduction to Number Bases Why Expressions with Negative Exponents Equal their Reciprocals Wholemovement and The Art of Folding Circles Who’s the Winner? Mu Alpha Theta: 10,000+ Math […]

## Introduction to Number Bases

In Clock Arithmetic and Modular Systems, we have learned about a different number system, a number system whose largest digit is 12.  We observed that in that system, we can only use the numbers 1 through 12. We also noticed that 12 acts as 0 since 12 added to any number is equal to that […]

## Why Expressions with Negative Exponents Equal their Reciprocals

We are familiar with the rule that for a positive exponent , and . In this post, we learn the reason behind the concept of negative exponents and their relationship to the reciprocal of the algebraic expression containing them. Recall that in dividing an algebraic expression with the same base, we have to subtract their […]