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.

[EX Q]: A restaurant served 9 hot dogs during lunch and 2 during dinner today . It served 5 of them yesterday . How many hot dogs were served today ?
[EX A]: 11

[EX Q]: Jessica grew 35 watermelons and 30 carrots , but the rabbits ate 27 watermelons . How many watermelons does Jessica have ?
[EX A]: 8

[EX Q]: There are 55 oranges in a box . Deborah has 11 oranges in a bag . Susan takes 35 oranges out of the box . How many oranges are left in the box ?
[EX A]:
20