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: Martin has 8 boxes of crayons . Each box holds 7 crayons . How many crayons does Martin have ?

SOLUTION: 56

PROBLEM: There are 6 pencils and 7 rulers in the drawer . Benny placed 3 pencils in the drawer . How many pencils are now there in total ?

SOLUTION: 9

PROBLEM: Sean has 45 whistles . He has 32 more whistles that Charles . How many whistles does Charles have ?

SOLUTION:
13