You are given a math word problem and you are supposed to apply multiple mathematical operators like addition, subtraction, multiplication, or division on the numbers embedded in the text to answer the following question and then only report the final numerical answer.

[EX Q]: tom already had 2 pieces of candy . his friend gave him 7 more and then tom bought another 10 how many pieces does tom have now ?
[EX A]: 19

[EX Q]: for lunch 2 students selected chocolate milk 15 selected strawberry milk and 3 selected regular milk . how many milks were taken total ?
[EX A]: 20

[EX Q]: a company invited 68 people to a luncheon but 50 of them did n't show up . if the tables they had held 3 people each how many tables do they need ?
[EX A]:
6

