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.

[Q]: Edward made 37 dollars mowing lawns over the summer . If he spent 21 dollars buying new mower blades , how many 2 dollar games could he buy with the money he had left ?
[A]: 8


[Q]: Before starting her shift , a waitress checks to make sure there is enough mustard for her customers . She finds 0.25 bottle at the first table , 0.25 bottle at the second table , and 0.375 bottle at the third table . Altogether , how many bottles of mustard does the waitress find ?
[A]: 0.875


[Q]: Nancy , Melanie , Mary , and Alyssa each bought 540 baseball cards , which come in packs of 20 . How many packs of baseball cards do they have in all ?
[A]:
108