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.

[Q]: 2 beavers were working on their home . 1 went for a swim . How many beavers are still working on their home ?
[A]: 1


[Q]: Willy has 1400 crayons . Lucy has 290 crayons . How many more crayons does Willy have then Lucy ?
[A]: 1110


[Q]: Isabella ’ s hair is 18 inches long . If she gets a haircut and now her hair is 9 inches long , how much of Isabella ’ s hair got cut off ?
[A]:
9