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: Zachary did 44 push-ups and 17 crunches in gym class today. David did 29 more push-ups but 13 less crunches than zachary. 

 Question: How many crunches did David do?

A: 4
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Q: Context: Jake has 3 fewer peaches than Steven who has 8 more peaches than Jill. Steven has 5 peaches. 

 Question: How many more peaches does Jake have than Jill?

A: 5
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Q: Context: Danny collects bottle caps. He found 63 bottle caps at the park while he threw away 51 old ones. Now he has 33 bottle caps in his collection. 

 Question: How many bottle caps did danny have at first?

A:
21
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