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.

Q: Context: Paul had 50 books. After buying some in a garage sale he had 151 left. 

 Question: How many books did he buy?

A: 101
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Q: Context: Baker made 52 pastries and 84 cakes. If he sold 102 cakes and 94 pastries 

 Question: How many more cakes than pastries did baker make?

A: 32
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Q: Context: Josh lost 11 marbles. If he had 19 marbles in his collection earlier 

 Question: How many marbles does he have now?

A:
8
****