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: Kelly had 56 apples . How many more apples does Kelly need to pick to have 105 apples altogether ?

SOLUTION: 49

PROBLEM: Joan picked 43 apples from the orchard , and gave 27 apples to Melanie . How many apples does Joan have now ?

SOLUTION: 16

PROBLEM: Kelly has 121 Nintendo games . How many does Kelly need to give away so that Kelly will have 22 games left ?

SOLUTION:
99