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: ethan has 31 presents . alissa has 22 more than ethan . how many presents does alissa have ?

SOLUTION: 53

PROBLEM: terry and grace are building a gear machine . terry used 37 building pieces . grace used 45 pieces . how many building pieces did they use altogether ?

SOLUTION: 82

PROBLEM: while playing a game frank defeated 6 enemies . each enemy earned him 9 points . then he got another 8 points for completing the level . how many points did he earn total ?

SOLUTION:
62