1 / 22

Exponents - An introduction -

Exponents - An introduction -. By Carol Edelstein David E. Owens Middle School New Milford, NJ. Location of an Exponent. An exponent is a number high and to the right of a base number. Exponent. 3. 4. Base. Definition of Exponent.

hateya
Download Presentation

Exponents - An introduction -

An Image/Link below is provided (as is) to download presentation 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. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Exponents- An introduction - By Carol Edelstein David E. Owens Middle School New Milford, NJ

  2. Location of an Exponent • An exponent is a number high and to the right of a base number. Exponent 3 4 Base

  3. Definition of Exponent • An exponent tells you how many times the base number is multiplied by itself. Exponent 4 3 Base • So, 34 is equal to 3 x 3 x 3 x 3.

  4. How to read an Exponent • This exponent is read “three to the fourth power”. 3 4 • This exponent is read “two to the sixth power”. 6 2

  5. How to read an Exponent (the special cases) • This exponent is read “seven to the second power”or “seven squared”. 7 2 • This exponent is read “eight to the third power”or “eight cubed”. 3 8

  6. Practice – Read These Exponents 2 2 3 6 5 7 3 4

  7. Did you get… Three to the second power or Three squared Six to the fifth power 2 2 3 6 5 7 3 4 Two to the third power Seven to the fourth power or Two cubed

  8. What is the Exponent? 3 2 x 2 x 2 = 2

  9. What is the Exponent? 2 3 x 3 = 3

  10. What is the Exponent? 4 5 x 5 x 5 x 5 = 5

  11. What is the Base and the Exponent? 4 8 x 8 x 8 x 8 = 8

  12. What is the Base and the Exponent? 5 7 x 7 x 7 x 7 x 7 = 7

  13. What is the Base and the Exponent? 9 x 9 = 9 2

  14. How to multiply out an Exponent to find theStandard Form 4 3 = 3 x 3 x 3 x 3 9 27 81

  15. Write the Power in Standard Form 2 4 16 = 4 x 4 = 16 Make sure that you do notread this question as 4 x 2.

  16. Write the Power in Standard Form 3 2 8 = 2 x 2 x 2 = 4 x 2 = 8 How did you do?

  17. Write the Power in Standard Form 2 3 9 = 3 x 3 = 9 Again, make sure that you do notread this question as 3 x 2.

  18. Write the Power in Standard Form 4 5 625 = 5 x 5 x 5 x5 = 25 x 5 x 5 = 125 x 5 = 625

  19. Exponents used inArea Problems Area = length x width Length = 30 ft Width = 15 ft Area = 30 ft x 15ft = 450 ft 15ft 30ft 2 Remember:ft 2 = ft x ft

  20. Exponents are used inVolume Problems Volume=length x width x height length = 10 cm width = 10 cm height = 20 cm Volume = 20 cm x 10 cm x 10 cm = 2,000 cm 20cm 10cm 10cm 3 Remember:cm3 = cm x cm x cm

  21. Exponents are also used… • in scientific notation to express very large or small numbers. Example: The distance to the sun is about 90,000,000 miles. Using scientific notation, we can write this number. 90,000,000 = 9 x 10 x 10 x 10 x 10 x 10 x 10 x 10 9 x 10 7 Scientific notation

  22. Congratulations, now you know a little more about exponents. The End

More Related