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]: Luke had 48 dollars in January . By March he had spent 11 dollars . If he got another 21 dollars from his mom , how much money would he have ?
[EX A]: 58

[EX Q]: Megan picked 19 carrots from her garden . If she threw out 4 of them and then picked 46 more the next day , how many carrots would she have total ?
[EX A]: 61

[EX Q]: Tom had 5 books . If he sold 4 of them and used the money he earned to buy 38 new books , how many books would Tom have ?
[EX A]:
39