You are given a math word problem and you are supposed to only use subtraction on the numbers embedded in the text to answer the following question and then only report the final numerical answer.
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Question: Context: Paco had 26 salty cookies and 17 sweet cookies. He ate 14 sweet cookies and 9 salty cookies. 

 Question: How many salty cookies did Paco have left?

Answer: 17


Question: Context: Julia played tag with 11 kids on monday. She played tag with 12 kids on tuesday. 

 Question: How many more kids did she play with on tuesday than on monday?

Answer: 1


Question: Context: Paul had 115 books. He sold 78 books in a garage sale. 

 Question: How many books does he have left with him?

Answer:
37