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

Example Input: Context: There are many different books in the ' crazy silly school ' series. If you have read 13 of the books and are yet to read 8 books 

 Question: How many books are there in the ' crazy silly school ' series?
Example Output: 21

Example Input: Context: Dan has $ 3 left with him after he bought a candy bar for $ 2. 

 Question: How much money did he have initially?
Example Output: 5

Example Input: Context: Kelly gives away 91 nintendo games. 

 Question: How many did she have initially if she still has 92 games left?
Example Output:
183