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26 May, 21:09

What is the sum of 4.9 * 102 and 6.8 * 103?

(one answer)

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Answers (1)
  1. 27 May, 00:47
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    4.9 * 10^2 + 6.8 * 10^3

    = 10^2 (4.9 + 68)

    = 72.9 x 10^2

    = 7.29 x 10^3

    answer

    7.29 x 10^3
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