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]: shelby 's teacher gives out gold stars for great math work . yesterday shelby earned 4 gold stars . today she earned 3 more . how many gold stars did shelby earn in all ?
[EX A]: 7

[EX Q]: there are 9 students in the class and 27 skittles . if the skittles are divided equally among the students how many does each student get ?
[EX A]: 3

[EX Q]: after visiting france rachel 's sister bella requested that they see the buckingham palace in london . if they travelled 451 miles by land and 150 miles by sea across the english channel what is the total distance that they travelled ?
[EX A]:
601