TASK DEFINITION: You are given a math word problem and you are supposed to apply a single mathematical operators like addition, subtraction, multiplication or division on the numbers embedded in the text to answer the following question and then only report final the numerical answer.
PROBLEM: Adam has $ 5 to buy an airplane that costs $ 4.28 . How much change will Adam get ?

SOLUTION: 0.72

PROBLEM: Dan had 97 baseball cards , and 8 were torn . Sam bought 15 of Dan 's baseball cards . How many baseball cards does Dan have now ?

SOLUTION: 82

PROBLEM: Scott has 4 tickets . Ernest has with 9 tickets . Ernest finds another 72 . How many tickets does Ernest end with ?

SOLUTION:
81