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: Allan brought 6 balloons and Jake brought 3 balloons to the park. Jake then bought 4 more balloons at the park. 

 Question: How many more balloons did Jake have than Allan in the park?

SOLUTION: 1

PROBLEM: Context: Paul got a box of 440 crayons for his birthday. During the school year he gave 111 crayons to his friends while he lost 106 crayons. 

 Question: How many crayons did he have left?

SOLUTION: 223

PROBLEM: Context: For Gwen's birthday she received 7 dollars. She spent some money and has 5 dollars left with her. 

 Question: How much money did she spend?

SOLUTION:
2