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: Tom found 7 seashells but 4 were broken . How many unbroken seashells did Tom find ?

SOLUTION: 3

PROBLEM: Sam found 18 seashells and Mary found 47 seashells on the beach . How many seashells did they find together ?

SOLUTION: 65

PROBLEM: The school cafeteria ordered 8 red apples and 43 green apples for students lunches . But , if only 42 students wanted fruit , how many extra did the cafeteria end up with ?

SOLUTION:
9