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

[EX Q]: Fred has 40 baseball cards . Keith bought 22 of Fred 's baseball cards . How many baseball cards does Fred have now ?
[EX A]: 18

[EX Q]: Paul bought 6 boxes of chocolate candy and 4 boxes of caramel candy . If each box has 9 pieces inside it , how much candy did he have total ?
[EX A]: 90

[EX Q]: At Tom 's Restaurant a group with 2 adults and 5 children came in to eat . If each meal cost 8 dollars , how much was the bill ?
[EX A]:
56