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.

[Q]: Cade had 87 marbles . He gave 8 to Dylan . How many does he have left ?
[A]: 79


[Q]: A farmer estimates that he will harvest 48097 bushels of wheat . The weather is perfect during the growing season , so he harvests 684 bushels of wheat than expected . How many bushels of wheat does the farmer harvest ?
[A]: 48781


[Q]: My dog had some bones . Then , he dug up 367 bones . Now he has 860 bones . How many bones did he start with ?
[A]:
493