Question
PSLE
Simon had 12 more ten-dollar notes than fifty-dollar notes at first. He exchanged $900 worth of fifty-dollar notes for ten-dollar notes. How many less fifty-dollar notes than ten-dollar notes did Simon have after the exchange?
2 m

Click button first when a symbol is required. X

PSLE
Simon had 12 more ten-dollar notes than fifty-dollar notes at first. He exchanged $900 worth of fifty-dollar notes for ten-dollar notes. How many less fifty-dollar notes than ten-dollar notes did Simon have after the exchange?