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.
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Question: Joan found 79 seashells on the beach , she gave Mike 63 of the seashells . How many seashells does she now have ?

Answer: 16

Question: Tom went to 4 hockey games this year , but missed 7 . He went to 9 games last year . How many hockey games did Tom go to in all ?

Answer: 13

Question: There are 8 apples in a pile on the desk . Each apple comes in a package of 11 . 5 apples are added to the pile . How many apples are there in the pile ?

Answer:
13