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: David did 56 more push-ups than Zachary in gym class today. If David did 38 push-ups 

 Question: How many push-ups did Zachary and David do altogether?

SOLUTION: 20

PROBLEM: Context: Danny has 21 bottle caps in his collection. He found some more bottle caps at the park. If he has 53 bottle caps now 

 Question: How many bottle caps did he find at the park?

SOLUTION: 32

PROBLEM: Context: Jesse's room is 19 feet wide and 20 feet long. 

 Question: How much longer is her room than it is wide?

SOLUTION:
1