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: At the arcade Dave had won 19 tickets. If he used 12 to buy some toys and 7 more to buy some clothes

Question: How many more tickets did Dave use to buy toys than he did to buy clothes?
[A]: 5

[Q]: Context: Ed had 12 more marbles than Doug. Ed lost 20 of his marbles at the playground. If Ed had 17 marbles

Question: How many marbles does Doug have now?
[A]: 5

[Q]: Context: 2 red peaches, 6 yellow peaches and 14 green peaches are in the basket.

Question: How many more green peaches than yellow peaches are in the basket?
[A]:
8