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.

[Q]: dave had 10 video games but 2 of them were n't working . if he wanted to sell the working games for $ 4 each how much money could he earn ?
[A]: 32


[Q]: maria was placing her spare change into stacks . each stack had 3 coins . if she had 5 stacks how many coins did she have ?
[A]: 15


[Q]: brenda betty 's sister wanted to have 3 bracelets with star-shaped stones . she also bought 36 star-shaped stones from the local store and gave it to betty . how many star-shaped stones will there be in each of the bracelet betty makes for brenda ?
[A]:
12