TASK DEFINITION: Given a math word problem, answer the following question. You might need to apply addition or subtraction mathematical operators on the numbers embedded in the text to answer the question and then only report the final numerical answer.
PROBLEM: tiffany was sending out birthday invitations to her friends . she sent out 9 on monday and 8 on tuesday . how many did she send total ?

SOLUTION: 17

PROBLEM: peter had 33 marbles in his pocket . he lost some when he went outside to play . now he only has 18 marbles . how many marbles did peter lose ?

SOLUTION: 15

PROBLEM: after visiting france rachel 's sister bella requested that they see the buckingham palace in london . if they travelled 451 miles by land and 150 miles by sea across the english channel what is the total distance that they travelled ?

SOLUTION:
601