TASK DEFINITION: You are provided with an arithmetic question. Your task is to compute the solution using the given arithmetic operations. The only arithmetic operators needed to answer the questions are'+'(addition) and'-'(subtraction). The answer should be correct to one decimal place.
PROBLEM: A restaurant served 7 slices of pie during lunch and 5 during dinnertoday. It served 8 of them yesterday. How many slices of pie wereserved today?

SOLUTION: 12.0

PROBLEM: Last year at Newberg's airport, 14507 passengers landed on time.Unfortunately, 213 passengers landed late. In all, how manypassengers landed in Newberg last year?

SOLUTION: 14720.0

PROBLEM: An oil pipe in the sea broke. Before engineers started to fix the pipe,2475 gallons of oil leaked into the water. A total of 6206 gallons of oilleaked before the pipe was fixed. How many gallons of oil leakedwhile the engineers were fixing the pipe?

SOLUTION:
3731.0