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: Marco and his dad went strawberry picking. Marco's strawberries weighed 30 pounds. If together their strawberries weighed 47 pounds. 

 Question: How much more did his strawberries weigh than his dad's?

SOLUTION: 13

PROBLEM: Context: Dan has $ 4. He had $ 3 left with him after he bought a candy bar. 

 Question: How much did the candy bar cost?

SOLUTION: 1

PROBLEM: Context: The grasshopper, the frog and the mouse had a jumping contest. The grasshopper jumped 24 inches. The frog jumped 33 inches farther than the grasshopper and the mouse jumped 5 inches lesser than the frog. 

 Question: How much farther did the mouse jump than the grasshopper?

SOLUTION:
28