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: Kelly bought 0.1 pounds of peanuts and 0.4 pounds of raisins . How many pounds of snacks did she buy in all ?
Example Output: 0.5

Example Input: For the school bake sale Chloe made 28 cupcakes . If she sold 25 of them and then made 8 more , how many cupcakes would she have ?
Example Output: 11

Example Input: Harry Hound had a terrible earache yesterday . When I peered into his ears yesterday , I found 36 frisky fleas having a party in his right ear and 85 baby fleas sleeping peacefully in his left ear . I cleaned out Harry Hound 's ears . How many fleas perished ?
Example Output:
121