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

[EX Q]: A store had 86 coloring books in stock . They ended up putting them on sale and getting rid of 37 of them . The put the ones they still had onto shelves with 7 on each shelf . How many shelves did they use ?
[EX A]: 7

[EX Q]: Robin had 30 songs on her mp3 player . If she deleted 8 old songs from it and then added 10 new songs , how many songs does she have on her mp3 player ?
[EX A]: 32

[EX Q]: Edward was trying to expand his game collection . He bought 41 games from a friend and bought 14 more at a garage sale . If 31 of the games did n't work , how many good games did he end up with ?
[EX A]:
24