Negative exponents

1 / 11

# Negative exponents - PowerPoint PPT Presentation

Negative exponents. What do we know? . Which number is in exponential form: -10, , 10 Identify the Base of that number What is the exponent in that number ?. - the number being multiplied by itself ie . 10. +2. What does the exponent represent? 10.

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.

## PowerPoint Slideshow about ' Negative exponents' - ciara

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

### Negative exponents

What do we know?
• Which number is in exponential form:

-10, , 10

• Identify the Base of that number
• What is the exponent in that number?

- the number being multiplied by itself ie. 10

+2

What does the exponent represent? 10
• 10 x 10

Or the number of times the base is used as a factor.

Also called the “power”

Finish this pattern:

1

10

100

1000

• 100 =
• 101=
• 102=
• 103=

What are we doing each time to get the next number in standard form?

= 1 x 10

= 10 x 10

= 100 x 10

Multiplying by 10

Reverse!!!!
• 103 = 1000
• 102= 100
• 101= 10
• 100 = 1
• Do you see a pattern?
•  10 =
•  10 =
•  10 =

Based on our patterns we have just seen, what will happen?

Writing negative exponentsin multiple forms
• If 10-1 = 1/10 how could you write that in decimal form?
• How about 10-2 = 1/100, write it in decimal form.
• How about 10-3 ? Write it in decimal form.

What do we know now?
• What type of numbers will be represented by powers of 10 with negative exponents?

Answer: decimals and fractions, small numbers between 0 and 1

.01

or

10-2

1

0

10-x =

1

10x

• Ex. 10-2 = 1 = 1 = .01
• 102 100