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Estimate the product of 109*129= by rounding

Estimate the product of 109*129= by rounding

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Estimate (do in your head):
130 x 110 =
(130 x 100) plus (130 x 10) =

13,000 + 1,300 = 14,300

(actual 109 x 129 = 14,061)


Posted on Oct 07, 2009

  • Just Gort
    Just Gort Oct 07, 2009

    Hey, wait! .. is this homework!?!

    Who gets credit? me or you?

    I am glad to help....

    If you do not understand the steps, please comment and I will explain further.



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