Question
Tim gave 211 of his marbles to Henry, 111 of his marbles to Michael and 211 of his marbles to Jenson. He then had 12 marbles left. How many marbles had he at first?
4 m

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Tim gave 211 of his marbles to Henry, 111 of his marbles to Michael and 211 of his marbles to Jenson. He then had 12 marbles left. How many marbles had he at first?