Given a math word problem, answer the following question. You might need to apply addition or subtraction mathematical operators on the numbers embedded in the text to answer the question and then only report the final numerical answer.

[EX Q]: haley watched tv for 6 hours on saturday and 3 hours on sunday . how many hours did haley watch tv total ?
[EX A]: 9

[EX Q]: at the arcade amy had 6 tickets she saved from the last time she went . this time she played a game 7 times and earned 5 tickets each time she played . how many tickets does she have now ?
[EX A]: 41

[EX Q]: for a potluck lunch debby brought 10 bottles of soda . if everyone only drank 8 of the sodas how many did she have to take back home ?
[EX A]:
2