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.

[EX Q]: There are 5 oak trees currently in the park . Park workers will plant 4 more oak trees today . How many oak trees will the park have when the workers are finished ?
[EX A]: 9

[EX Q]: Robin uploaded 35 pictures from her phone and 5 from her camera to facebook . If she sorted the pics into 5 different albums with the same amount of pics in each album , how many pictures were in each of the albums ?
[EX A]: 8

[EX Q]: Vince 's bus ride to school is 0.625 mile and Zachary 's bus ride is 0.5 mile . How much longer is Vince 's bus ride than Zachary 's ?
[EX A]:
0.125