Exponents NOtes

Ch. 1 Exponents
Exponent: tells how many times a # is multiplied by itself.
Ex. 24 = 2 x 2 x 2 x 2
63 = 6 x 6 x 6
Exponential Form: when a # is written with a base and an exponent.
Ex. 103 is in exponential form…10 is the base, 3 is the exponent
How you say exponents:
**Most of the time you will here “10 to the 3rd power” or “2 to the fourth
power” or “6 to the third power”.
**Here are some other ways to say “to the 2nd power and 3rd power”:
82 is “8 squared”
53 is “5 cubed”
**Any number to the 0 power = 1**
Ex. A phone tree is used to contact families at Paul’s school. The secretary
calls 3 families. Then each family calls 3 other families, and so on. How
many families will be notified during the fourth round of calls?
(Most of you would draw a tree diagram. However, you can easily do 3 to the
3rd power)