TASK DEFINITION: You are given a math word problem and you are supposed to apply a single mathematical operator like addition, subtraction, multiplication, or division on the numbers embedded in the text to answer the following question and then only report the final numerical answer.
PROBLEM: tripp and charlotte are going on a 36 mile hike . tripp 's backpack weighs 25 pounds . charlotte 's backpack weighs 18 pounds . they hiked 9 miles the first day . what 's the difference between the pounds of backpack of tripp and charlotte ?

SOLUTION: 7

PROBLEM: melissa scored 120 points in each game . how many points did she score in 10 games ?

SOLUTION: 1200

PROBLEM: henry had $ 54 . later he sold some of his old toys and got another $ 2 . how much money does he have total ?

SOLUTION:
56