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.

Q: Sam got 9 pennies for washing clothes , and 7 quarters for mowing lawns . How much money does Sam have ?

A: 1.84
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Q: A pet supply store has 600 bags of dog food and 327 bags of cat food . How many more bags of dog food are there than cat food ?

A: 273
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Q: Vanessa had 13 music files and 30 video files on her flash drive . If she deleted 10 of the files , how many files were still on her flash drive ?

A:
33
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