1 / 9

Multiplying by powers of 10

Multiplying by powers of 10. What are powers of 10?. 100,000 10,000 1,000 100 10 1 .1 .01 .001 .0001 .00001. We will only look at these numbers today!. GREATER THAN ONE. LESS THAN ONE. Look for a pattern. 1.24 x 1 = 1.24 1.24 x 10 = 12.4

wadek
Download Presentation

Multiplying by powers of 10

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. Multiplying by powers of 10

  2. What are powers of 10? 100,000 10,000 1,000 100 10 1 .1 .01 .001 .0001 .00001 We will only look at these numbers today! GREATER THAN ONE LESS THAN ONE

  3. Look for a pattern. 1.24 x 1 = 1.24 1.24 x 10 = 12.4 1.24 x 100 = 124 1.24 x 1,000 = 1,240 1.24 x 10,000 = 12,400 RIGHT The decimal point moves to the ______________ the same number of places as the number of zeros in the power of 10 greater than one.

  4. Examples 35 0.35 x 100 = 8.5 x 1000 = 2.72 x 1000 = 5.98 x 10,000 = 8,500 0 0 2,720 0 59,800 0 0

  5. WRITE THIS DOWN! If the power of 10 is………….. • MORE THAN ONE You are almost done!  Decimal moves RIGHT

  6. Let’s test your knowledge! HOMEWORK Page 143 #9-20, 52-53 25 0.25 x 100 = 6.55 x 100 = 0.9 x 10 = 3.48 x 10 = 9. 655 10. You are the BEST! 9 11. 12. 34.8

  7. Look for a pattern. 12.4 x .1 = 1.24 12.4 x .01 = .124 12.4 x .001 = .0124 12.4 x .0001 = .00124 12.4 x .00001 = .000124 LEFT The decimal point moves to the ______________ the same number of digits as there are after the decimal in the power of 10 less than one.

  8. Examples . 0 5.4 x 0.01 = 93.6 x 0.1 = 7.84 x 0.001 = 0.3 x 0.0001 = 0.054 . 9.36 . 0.00784 0 0 . 0.00003 0 0 0

More Related