TASK DEFINITION: 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.
PROBLEM: Context: A book has 2 chapters. The first chapter is 37 pages long. The second chapter is 80 pages long. 

 Question: How many more pages does the second chapter have than the first chapter?

SOLUTION: 43

PROBLEM: Context: Winter is almost here and most animals are migrating to warmer countries. There were 89 bird families living near the mountain. If 60 bird families flew away for winter 

 Question: How many more bird families flew away for the winter than those that stayed behind?

SOLUTION: 31

PROBLEM: Context: After eating a hearty meal they went to see the Buckingham palace. There, Rachel learned that 132 visitors came to the Buckingham palace that day. If 406 people visited the Buckingham palace within the past 327 days 

 Question: How many visitors visited the Buckingham palace on the previous day?

SOLUTION:
274