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

Example Input: In 1 week , Mitch 's family drank 0.5 carton of regular milk and 0.1 carton of soy milk . How much milk did they drink in all ?
Example Output: 0.6

Example Input: For homework Nancy had 17 math problems and 15 spelling problems . If she can finish 8 problems in an hour how long will it take her to finish all the problems ?
Example Output: 4

Example Input: There are 54 scissors in the drawer . Keith placed 22 more scissors in the drawer . How many scissors are now there in all ?
Example Output:
76