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]: Dan grew 42 turnips and 38 cantelopes . Jessica grew 47 turnips . How many turnips did they grow in total ?
[A]: 89

[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]: Mariela was in the hospital and she got 403 get well cards from around the country . When she got home she got 287 more cards from friends and family . How many get well cards did Mariela get ?
[A]:
690