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]: William starts with 15 tickets . He buys 3 more . How many tickets does William end with ?
[A]: 18


[Q]: There are 47 eggs in a box . Harry takes 5 eggs . How many are left ?
[A]: 42


[Q]: There are 9 crayons in the drawer . Benny placed 3 crayons in the drawer . How many crayons are now there in total ?
[A]:
12