You are given a math word problem and you are supposed to apply multiple mathematical operators like addition, subtraction, multiplication or division on the numbers embedded in the text to answer the following question and then only report the final numerical answer.
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Question: A worksheet had 2 problems on it . If a teacher had 14 worksheets to grade and had already graded 7 of them , how many more problems does she have to grade ?

Answer: 14


Question: While on vacation , Megan took 15 pictures at the zoo and 18 at the museum . If she later deleted 31 of the pictures , how many pictures from her vacation did she still have ?

Answer: 2


Question: At the arcade Edward won 9 tickets . If he spent 4 tickets on a beanie and later won 4 more tickets , how many would he have ?

Answer:
9