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: A carpenter bought a piece of wood that was 0.41 meters long . Then she sawed 0.33 meters off the end . How long is the piece of wood now ?
Example Output: 0.08

Example Input: Joan bought toy cars for $ 14.88 , a skateboard for $ 4.88 , and got toy trucks for $ 5.86 . She spent $ 14.55 on pants . In total , how much did Joan spend on toys ?
Example Output: 25.62

Example Input: In Shannon 's apartment complex , 0.16666666666666666 the apartments are one - bedroom apartments and 0.3333333333333333 are two - bedroom apartments . What fraction of the apartments are either 1 - or two - bedroom apartments ?
Example Output:
0.5