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]: Kaleb had 10 video games but 8 of them were n't working . If he wanted to sell the working games for $ 6 each , how much money could he earn ?
[EX A]: 12

[EX Q]: A chef needs to cook 9 potatoes . He has already cooked 7 . If each potato takes 3 minutes to cook , how long will it take him to cook the rest ?
[EX A]: 6

[EX Q]: A pet store had 13 puppies . In one day they sold 7 of them and put the rest into cages with 2 in each cage . How many cages did they use ?
[EX A]:
3