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!)
|How many ways can 8 books be arranged on a book shelf?|
|If you have 20 employees and you need to form a committee of 5, how many ways can you do it?|
|How many possible ways are there to pick the numbers for the lottery?|
|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.