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.

Example Input: 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 ?
Example Output: 14.75

Example Input: The town of Milburg has 5256 grown - ups and 2987 children . How many people live in Milburg ?
Example Output: 8243

Example Input: It takes 4 feet of cotton to make a tee - shirt . How many tee - shirts can be made with 60 feet of material ?
Example Output:
15