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 51 push-ups in gym class today. David did 22 more push-ups than Zachary. John did 4 push-ups less than David.

Question: How many push-ups did John do?
[A]: 69

[Q]: Context: After Olivia visited a supermarket there were 29 dollars left. If there were 54 dollars in her wallet initially

Question: How much did she spend?
[A]: 25

[Q]: Context: Danny collects bottle caps. He threw away 54 of the old ones at the park while he found 48 bottle caps new ones. Now he has 52 bottle caps in his collection.

Question: How many more bottle caps did danny throw away than those he found at the park?
[A]:
6