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Mathematics 20 Online
OpenStudy (anonymous):

Choose all properties that were used to simplify the following problem: [38 + 677] + (-38) [677 + 38] + (-38) 677 + [38 + (-38)] 677 + 0 677

OpenStudy (anonymous):

Help?

OpenStudy (anonymous):

Thanks!

OpenStudy (chris911):

aww ur welcome and no prob

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