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27 September, 10:15

Perform the operation. Write your answer in scientific notation

1). 7 x 10^6 - 5.3 x 10^6

2). 3.4 x 10^4 + 7.1 x 10^5

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  1. 27 September, 10:40
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    1). 7 x 10^6 - 5.3 x 10^6 = 7.0-5.3 (*10^6)

    = 1.7 * 10^6

    2). 3.4 x 10^4 + 7.1 x 10^5 = 3.4+71 (*10^4)

    = 74.4 * 10^4 = 7.44 * 10^5
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