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]: Jessica weighs 49 pounds . Thomas weighs 44 pounds . How much heavier is Jessica than Thomas ?
[EX A]: 5

[EX Q]: A cereal box holds 18 cups of cereal . Each serving is 2 cups . How many servings are in the whole box ?
[EX A]: 9

[EX Q]: White t - shirts can be purchased in packages of 6 . If Mom buys 71 packages , how many white t - shirts will Mom have ?
[EX A]:
426