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: Rachel had to complete 4 pages of reading homework, 7 pages of math homework and 19 more pages of biology homework. 

 Question: How many more pages of math homework than reading homework did she have?

SOLUTION: 3

PROBLEM: Context: Winter is almost here and most animals are migrating to warmer countries. There are 8 bird families living near the mountain. If 42 bird families flew away to africa and 31 bird families flew away to asia 

 Question: How many more bird families flew away to africa than those that flew away to asia?

SOLUTION: 11

PROBLEM: Context: Mary is baking a cake. The recipe calls for 10 cups of flour 2 cups of sugar and 80 cups of salt. She already put in 7 cups of flour. 

 Question: How many more cups of flour than cups of sugar does she need to add now?

SOLUTION:
1