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]: While playing a trivia game , Adam answered 5 questions correct in the first half and 5 questions correct in the second half . If each question was worth 5 points , what was his final score ?
[EX A]: 50

[EX Q]: Abe 's family moved from the Bahamas to Japan , so they had convert their money into Japanese yen . Their checking account now has 6359 yen and their savings account now has 3485 yen . How many yen do they have ?
[EX A]: 9844

[EX Q]: A construction company bought 5.91 tons of gravel and 8.11 tons of sand . How many tons of material did the company buy in all ?
[EX A]:
14.02