You are given a math word problem and you are supposed to apply a single mathematical operators like addition, subtraction, multiplication or division on the numbers embedded in the text to answer the following question and then only report final the numerical answer.

[EX Q]: If Anne wandered for 3 hours at 2 miles per hour . How far did Anne go ?
[EX A]: 6

[EX Q]: There are 7.75 gallons of water in Becky 's fish tank . If Becky adds 7 gallons more , how many gallons will there be in all ?
[EX A]: 14.75

[EX Q]: Mrs. Sheridan has 11 cats . Mrs. Garrett has 24 cats . How many more cats does Mrs. Garrett have than Mrs. Sheridan ?
[EX A]:
13