Sunday, 30 November 2014

Estimation: How many pieces are in this puzzle?

Try to estimate how many pieces are in this puzzle.

To know the answer click on the video bellow.



12 comments:

  1. I think that 95 is too small and 200 is too big my estimate is 104.

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  2. That's great Cristina. I had to resist the temptation to count the rows and columns, so that I would be estimating, not counting!

    I like the way you explain the calculation in the video!

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  3. Super idea Cristina! I agree with Mr Gregg.

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  4. I think 47 is too small and 220 is too big. But my estimate is 210.

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  5. I think 30 is too big and 15 is to small. My estemate is 25

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  6. To small is 50 My estimate is 123

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  7. I think 150 is too big and 50 is too small, my estimate is 100

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  8. I think 250 is too big 100 is too small my estimate is 200

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  9. I think the number to small is 50.I think the number is 104

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  10. I think 20 is too small and 90 is too big and my estimate is 200

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