# Problems that Fight Back!

**“A problem worthy of attack, proves its worth by fighting back!” – Paul Erdos**

One of the greatest mathematicians of the 20th Century, Paul Erdos, is often associated with the following rhyme: “A problem worthy of attack, proves its worth by fighting back!” This page is dedicated to these types of problems. Originally geared to high school students, these problems have provided many parents with the same challenge as their children. So, take a look around and have some fun. Of course, if you have any suggestions for these problems or new ones to offer, please leave a comment or contact me at: musingsonmath@gmail.com.

Basic Number Problems – Some problems involving the basic properties of numbers. These are great for any algebra teacher looking to introduce students to the concept of proof before they enter the geometry classroom.

Algebra Problems – Great for any algebra teacher who is tired of the traditional mind-numbing problems.

Geometry Problems – Some interesting problems for anyone who is a fan of geometry.

Unsolved Problems – Looking for the ultimate challenge. Solve one of these and your name can be spoken with the likes of Erdos, Euler and Gauss … you might even earn $1 million!