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9*10^5+5*10^4+2

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  1. 9 * 10^5 + 0.5 * 10^5 + 0.00002 * 10^5

    = 9.50002 * 10^5

    However that analysis has a significant figure problem. For example you need
    9.00000 * 10^5 for the first number
    to get enough accuracy to use .00002
    and to the original one significant figure you have 1*10^6

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