TASK DEFINITION: You are given a math word problem and you are supposed to apply addition or subtraction mathematical operators on the numbers embedded in the text to answer the following question and then only report the final numerical answer.
PROBLEM: Roger had 16 dollars . For his birthday he got 28 more dollars but spent 25 on a new game . How much money does he have now ?

SOLUTION: 19

PROBLEM: There are 8 apples in a pile on the desk . Each apple comes in a package of 11 . 5 apples are added to the pile . How many apples are there in the pile ?

SOLUTION: 13

PROBLEM: Students at Arcadia schools are participating in a coat drive . 9437 coats have been collected so far . 6922 coats were collected from the high schools , and the rest from the elementary schools . How many coats were collected at the elementary schools ?

SOLUTION:
2515