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: Baker made 149 cakes and 91 pastries. If he sold 10 cakes and 90 pastries 

 Question: How many cakes would baker still have?

SOLUTION: 139

PROBLEM: Context: Josh had 20 marbles in his collection. He gave 2 marbles to Jack. 

 Question: How many marbles does Josh have now?

SOLUTION: 18

PROBLEM: Context: There were 174 parents in the program and 521 pupils too. 

 Question: How many more pupils were present compared to parents in the program?

SOLUTION:
347