You are given a math word problem and you are supposed to apply a single mathematical operator 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.

[EX Q]: mike got 28 gb of space on his disk drive to backup his files . if his files would take up 26 gb how many gb would he have left ?
[EX A]: 2

[EX Q]: helen 's mother brought 101 hotdogs . after a few hours dylan 's mother arrived with 379 hotdogs . how many hotdogs do they have altogether ?
[EX A]: 480

[EX Q]: tiffany was buying sodas for her and her friends . they needed 9 sodas but tiffany bought 7 extra . how many did she buy ?
[EX A]:
16