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]: a group was sitting at a lunch table . after finishing 6 people left and there were 5 left at the table . how many people were at the table to start with ?
[EX A]: 11

[EX Q]: bryan has always been fond of studying rocks and minerals . he has a room full of books about and samples of the different types of rocks . 1 particular day he went in the room to take a look at his mineral samples . if he has 65 samples of minerals per shelf and he has a total of 7 shelves how many mineral samples does he have ?
[EX A]: 455

[EX Q]: zoe picked 5 apples from her tree . now the tree has 6 apples still on it . what 's the difference between the number of apples zoe picked and now the tree has ?
[EX A]:
1