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.

[Q]: The Silvergrove Public Library used a grant to purchase 2647 books . Now the library has a total of 8582 books . How many books did the library have before the grant ?
[A]: 5935

[Q]: Jennifer starts with 7 apples . She finds another 74 . How many apples does Jennifer end with ?
[A]: 81

[Q]: Harold has 53 marbles . He gets 16 more from Steve . How many marbles does Harold have in all ?
[A]:
69