## Why does multiplying two negatives give you a positive?

I found myself in a difficult situation the other day: explaining the multiplication of two negative numbers to my 8…

November 5, 2018
## Why does multiplying two negatives give you a positive?

I found myself in a difficult situation the other day: explaining the multiplication of two negative numbers to my 8…

October 4, 2018
## A Simple Math Puzzle

Enter your answer in the comments. Don’t forget to show your work for full points… [colorvote id=”1″ style=”wpcvp-poll”]

September 12, 2018
## The “Infinite Profit” Puzzle

Let’s say I put $20 in a box. Now you do the same. The box now contains $40, and we’re…

August 28, 2018
## Does 0.99999… really equal 1?

Does 0.999 (repeated) equal “one”? You might be surprised by the answer… which is “yes“. I heard this on a…

August 26, 2018
## What’s so special about Pi?

Formally, Pi is a mathematical constant whose value is the ratio of a circle’s circumference to its diameter (Pi = C/d).…

August 25, 2018
## How Many Times Can You Really Fold a Piece of Paper in Half?

A popular myth exists that one can only fold a single piece of paper in half, seven, maybe eight times…

August 25, 2018
## Computers, Probability, Logic: Blaise Pascal’s Impressive Legacy

You are probably reading this article online. In that case, you may not know it but you have a seventeenth-century…