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: Haley grew 14 trees in her backyard. After a typhoon 9 died. 

 Question: How many more trees died in the typhoon than those that survived?

A: 4
****
Q: Context: Jack received 9 emails in the morning, 10 emails in the afternoon and 7 emails in the evening. 

 Question: How many more emails did Jack receive in the morning than in the evening?

A: 2
****
Q: Context: Tiffany was collecting cans for recycling. On monday she had 8 bags of cans. The next day she found 7 more bags worth of cans. 

 Question: How many more bags did she have on monday than she found on the next day?

A:
1
****