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.
--------
Question: sammy has 9 math problems to do for homework . he has already finished 2 of them . how many math problems does sammy have left ?

Answer: 7

Question: december is a busy month for the toy store . they had 95 games on the shelf . 68 games were sold the first week . the store got 47 more games from the factory . how many games did they have then ?

Answer: 74

Question: jerry owned 7 video games . for his birthday he got 2 more . how many games did jerry have total ?

Answer:
9