Question
PSLE
Tommy had 10 more two-dollar notes than five-dollar notes at first. He exchanged $30 worth of five-dollar notes for two-dollar notes. How many more two-dollar notes than five-dollar notes did Tommy have after the exchange?
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PSLE
Tommy had 10 more two-dollar notes than five-dollar notes at first. He exchanged $30 worth of five-dollar notes for two-dollar notes. How many more two-dollar notes than five-dollar notes did Tommy have after the exchange?