You are given a math word problem and you are supposed to apply multiplication or division mathematical operators on the numbers embedded in the text to answer the following question and then only report the final numerical answer.

[Q]: A magician was selling magic card decks for 2 dollars each . If he started with 5 decks and by the end of the day he had 3 left , how much money did he earn ?
[A]: 4


[Q]: You want to give your baseball cards to your 5 best friends . You have 455 baseball cards . How many would each get , if you share them equally ?
[A]: 91


[Q]: Gwen was organizing her book case making sure each of the shelves had exactly 4 books on it . If she had 5 shelves of mystery books and 3 shelves of picture books , how many books did she have total ?
[A]:
32