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: Randy has 37 blocks. He uses 33 blocks to build a tower and 13 blocks to build a house. 

 Question: How many more blocks did he use to build the tower than he did to build the house?

SOLUTION: 20

PROBLEM: Context: Julia played tag with some kids on monday. She played tag with 14 kids on tuesday. If she played with a total of 16 kids 

 Question: How many kids did she play with on monday?

SOLUTION: 2

PROBLEM: Context: Dave had 21 apps on his phone. He added 89 new apps. After deleting some he had 24 left. 

 Question: How many more apps did he add than he deleted?

SOLUTION:
3