instruction:
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.
question:
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?
answer:
5


question:
Context: Every day Ryan spends a total of 3 hours on learning english and chinese. If he spends 2 hours on learning english everyday 

 Question: How many hours does he spend on learning chinese?
answer:
1


question:
Context: Allan brought 5 balloons and Jake brought 3 balloons to the park. 

 Question: How many more balloons did Allan have than Jake in the park?
answer:

2