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There are 3 types of math geeks:

Those who can count
and those who can't.

So, you think you know how to count, do you?  OK... answer these! 
(If you can!)

point

How many ways can 8 books be arranged on a book shelf?

point

If you have 20 employees and you need to form a committee of 5, how many ways can you do it?

point

How many possible ways are there to pick the numbers for the lottery?

point

How many possible 7 - digit phone numbers are there?

Hmm... Don't know?  I do!  And it's pretty easy.

Amaze your friends and family!
Be the life of every party!
LEARN TO COUNT!

OK, OK!  Calm down!  I know you're very excited about this...  But, before we get into the wild stuff, I need to teach you some basics first.

The first thing I need to tell you about is called The Counting Principle.  This idea is really important and will be used throughout the rest of our counting.