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.

[EX Q]: amy had 26 music files and 36 video files on her flash drive . if she deleted 48 of the files how many files were still on her flash drive ?
[EX A]: 14

[EX Q]: amy was buying different soups . she bought 6 cans of chicken soup and 3 cans of tomato soup . how many soups did she buy ?
[EX A]: 9

[EX Q]: olivia had 81 pieces of paper in her folder . she used 56 pieces . how many pieces does she have now ?
[EX A]:
25