algebra

Which property would allow you to use mental computation to simplify the problem 27 + 15 + 3 + 5?

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  1. commutative and associative

    27 + 15 + 3 + 5
    = 27 + 3 + 15 + 5
    = 30 + 20
    = 50

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    2. 👎 7

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