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.

[EX Q]: Context: Winter is almost here and most animals are migrating to warmer countries. There are 8 bird families living near the mountain. If 42 bird families flew away to africa and 31 bird families flew away to asia 

 Question: How many more bird families flew away to africa than those that flew away to asia?
[EX A]: 11

[EX Q]: Context: Steven has 19 peaches. Jake has 12 fewer peaches than Steven and 72 more peaches than Jill. 

 Question: How many peaches does Jake have?
[EX A]: 7

[EX Q]: Context: Jack received 6 emails in the morning and 2 emails in the afternoon. 

 Question: How many more emails did Jack receive in the morning than in the afternoon?
[EX A]:
4