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: Lawrence county has 898051 kids. During summer break 629424 kids go to camp and the rest stay home. 

 Question: How many kids stay home?

SOLUTION: 268627

PROBLEM: Context: There were 6 roses and 20 orchids in the vase. Jessica cut some more roses and orchids from her flower garden. There are now 21 orchids and 22 roses in the vase. 

 Question: How many more roses than orchids are there in the vase now?

SOLUTION: 1

PROBLEM: Context: Ed had 2 more marbles than Doug. Doug lost some of his marbles at the playground. Now Ed has 19 more marbles than doug. 

 Question: How many marbles did Doug lose?

SOLUTION:
17