Question
PSLE
Diana had frisbees for sale. In the morning, she sold 25 of the frisbees. In the afternoon, she sold 310 of the remaining frisbees. After that, there were 21 frisbees left. How many frisbees did Diana have at first?
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PSLE
Diana had frisbees for sale. In the morning, she sold 25 of the frisbees. In the afternoon, she sold 310 of the remaining frisbees. After that, there were 21 frisbees left. How many frisbees did Diana have at first?