Question
PSLE
Lee had 15 more one-dollar notes than ten-dollar notes at first. He exchanged $80 worth of ten-dollar notes for one-dollar notes. How many less ten-dollar notes than one-dollar notes did Lee have after the exchange?
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PSLE
Lee had 15 more one-dollar notes than ten-dollar notes at first. He exchanged $80 worth of ten-dollar notes for one-dollar notes. How many less ten-dollar notes than one-dollar notes did Lee have after the exchange?