elisabeGilrazzybro elisabeGilrazzybro

29-12-2016
Mathematics

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Jack jack broke apart 5 x 216 as 5 x 200 5 x 16 to move to multiply mentally. what strategy did jackie use?

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Joshtray Joshtray

29-12-2016

he expanded 200 into 200 + 16 and multiplied each of them by 5. He used expansion

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