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: Gwen and her friends were recycling paper for their class . For every 3 pounds they recycled they earned one point . If Gwen recycled 5 pounds and her friends recycled 13 pounds , how many points did they earn ?

SOLUTION: 6

PROBLEM: A vase can hold 6 flowers . If you had 7 carnations and 47 roses , how many vases would you need to hold the flowers ?

SOLUTION: 9

PROBLEM: Fred has 40 baseball cards . Keith bought 22 of Fred 's baseball cards . How many baseball cards does Fred have now ?

SOLUTION:
18