Activity:

Ms. Vallejo won the lottery and would like to give each of you some $$!

Using only 4 numbers, what's the GREATEST value that you can make?

9999 9999 9999 9999

Pre-Algebra

Lesson 6.1

Positive Exponents

Table Discussion

Positive

Exponents

an

36 =

base exponent

Standard

Form

Expanded

Form

Exponent

Form

multiplication = repeated addition

exponents = repeated multiplication

Why did mathematicians invent exponents?

To make life easier

(and because they were lazy!)

What is the diference between...

SMOTD!difference

(-7)2 and -72

na x nb = n(a+b)

42 x 45 = 4(2+5) = 4(7) =

26 x 23 =

1019 x 1050 =

Multiplying Exponents Rules:

What's the answer?

50

51

For all nonzero real numbers,

a0 = 1 a1 = a30 = 1 71 = 7

HC

35 x 30 = 3(5+0) = 243

35 x 0 = 0

35 x 1 = 243

Examples:

(5 + 3)1 + 80 -7a3 when a=-3

http://www.youtube.com/watch?v=wCFSy_JKz3g

or

Homework

Assignment

Constant Growth

Exponential Growth

What is "Exponential growth?"

www.google.com/trends