Part 1. 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.
Part 2. Example
Context: Sam is 6 feet tall and Alex is 5 feet tall 

 Question: By how many feet is Sam taller than Alex? 
Answer: 1
Explanation:  Sam's height - Alex's height = 6-5 = 1
Part 3. Exercise
Context: Jake has 5 fewer peaches than Steven. Steven has 18 more peaches than Jill. If Jill has 87 peaches 

 Question: How many more peaches does Jake have than Jill?
Answer:
13