Tuesday, November 9, 2010

Kayla's Estimating Square Roots

Pg. 100, #14, 15
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14. Alex is thinking of a number. The number has a square root between 7 and 8, and it is a multiple of 12.

a) What number is Alex thinking of?

The square root of 7 is 49, and the square root of 8 is 64. 60 fits in between 49 and 64 and is a multiple of 12.
  • 12 x 5 = 60
b) There are no other multiplications of 12 that would fit that has a square root of 7 or 8.

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15. Order the following numbers from least to greatest.

  • 7, 6.7, 5.8, 5.1, 6.3 (I couldn't make the symbol for squaring, sorry. These are the simplified versions.)
The correct order is: 5.1, 5.8, 6.3, 6.7, 7
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Here is a link for a video that shows you how to calculate square roots without a calculator! Enjoy.


6 comments:

  1. Nice post Kayla. I liked that you divided your work using lines so that people would know that they are different. I also like how you used colors very well, not too much color and not less color. Next time separate the video and a link. Other than that, great job.

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  2. Good job, Kayla! I really liked your post! It was colourful and it was easy to read. I liked that you said that you couldn't find the square key. Good job.

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  3. Great Blog, Kayla. I like the colors, it really stands out. Next time you should probably add a video and a link. I understand it very well, Great Job.

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  4. Great post Kayla, I liked that you colorful and well organized post. I also liked the answers they really helped but maybe you should make a different link other than the video.

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  5. Great job Kayla! You add the right amount of color, but next time you might want to add some pictures.

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  6. Good job, Kayla. You explained your post neatly with color. Next time, add a video, link and a picture. Other than that, you did a great job.

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