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: Sara picked 35 pears and 27 apples from the orchard . She gave 28 pears to Dan . How many pears does Sara have ?

SOLUTION: 7

PROBLEM: Joan 's cat had 8 kittens . She gave 2 to her friends . How many kittens does she have now ?

SOLUTION: 6

PROBLEM: Mary ’ s mom is getting ready for Mary ’ s birthday party . She blew up 6 balloons this morning and 5 balloons this afternoon . How many balloons did she blow up in all ?

SOLUTION:
11