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

[EX Q]: Mrs. Hilt had 15 cents . She bought a pencil for 11 cents . How much money did she have left ?
[EX A]: 4

[EX Q]: A box of books weighs 42 pounds . Each book weighs 3 pounds . How many books are there in the box ?
[EX A]: 14

[EX Q]: Carol collects 2 peanuts . Carol 's father gives Carol 5 more . How many peanuts does Carol have ?
[EX A]:
7