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


[Q]: Fred has 709 green balloons , he gave Sandy 221 of the balloons . How many green balloons does he now have ?
[A]: 488


[Q]: Martin has 8 boxes of crayons . Each box holds 7 crayons . How many crayons does Martin have ?
[A]:
56