Question
PSLE
Owen had 12 more ten-dollar notes than fifty-dollar notes at first. He exchanged $450 worth of fifty-dollar notes for ten-dollar notes. How many more ten-dollar notes than fifty-dollar notes did Owen have after the exchange?
2 m

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PSLE
Owen had 12 more ten-dollar notes than fifty-dollar notes at first. He exchanged $450 worth of fifty-dollar notes for ten-dollar notes. How many more ten-dollar notes than fifty-dollar notes did Owen have after the exchange?