Jerome bought eight packs of baseball cards at a garage sale. Each pack had 10 cards. He gave his younger sister three cards from each pack. How many cards does Jerome have left?
56 cards left 10 cards in each pack (8 packs) 3 cards taken away from 8 packs is a total of 24 cards taken away. 8 times 10 is 80. 80 total cards. 80 take away 24 is 56.
