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Posted by on Tuesday, September 18, 2012 at 6:19pm.

Use rounding to estimate the product 12*9. Then, use compensation to find the actual answer. If Alison was rounding to find how much 12 books that were $9 apiece cost, would she get a good estimate? Explain.

  • math - , Tuesday, September 18, 2012 at 6:28pm

    12 * 10 = 120

  • math - , Tuesday, September 18, 2012 at 6:34pm

    Can you please explain why this is your answer?

  • math - , Tuesday, September 18, 2012 at 6:44pm

    I estimated by rounding 9 up to 10.

    12 * 10 = 120

    12 * 9 = 108

  • math - , Wednesday, October 7, 2015 at 2:36pm

    8267- 2761

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