Question
Perry had 423 marbles and Fanny had 343 marbles. After Perry gave Fanny some marbles, both of them have the same number of marbles. How many marbles did Perry give Fanny?
4 m

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Perry had 423 marbles and Fanny had 343 marbles. After Perry gave Fanny some marbles, both of them have the same number of marbles. How many marbles did Perry give Fanny?