Question
Zoe and Riordan shared 84 marbles. Zoe received 3 times as many marbles as Riordan. How many more marbles did Zoe receive than Riordan?
3 m

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Zoe and Riordan shared 84 marbles. Zoe received 3 times as many marbles as Riordan. How many more marbles did Zoe receive than Riordan?