liltaylor124 liltaylor124

06-02-2018
Mathematics

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Reina and Sam are multiplying (84)5 (73)9 Is either of them correct? Explain your reasoning.
Reina's Work: (84)5 (73)9 = 84 + 573 + 9 = 89712
Sam's Work: (84)5 (73)9 = 84⋅573⋅9 = 820727

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2021djansen 2021djansen

06-02-2018

they are both wrong because 84*5 equals 420 times 657 equals 275940 and84 plus 573 plus 9 is 666

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