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]: A chef needs to cook 12 potatoes . He has already cooked 6 . If each potato takes 6 minutes to cook , how long will it take him to cook the rest ?
[EX A]: 36

[EX Q]: Edward earned 4 dollars for each lawn he mowed . If he had 17 lawns to mow , but forgot to mow 9 of them , how much money did he actually earn ?
[EX A]: 32

[EX Q]: A waiter had 44 customers in his section . If 12 of them left and the rest of his tables had 8 people at each table , how many tables did he have ?
[EX A]:
4