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.

Q: Kaleen filled a bucket with 0.8 gallon of water. A few minutes later,she realized only 0.5 gallon of water remained. How much water had leaked out of the bucket?

A: 0.3
****
Q: Mary had 8 potatoes in the garden. The rabbits ate 3 of the potatoes. How many potatoes does Mary now have?

A: 5.0
****
Q: A restaurant served 9 hot dogs during lunch and 2 during dinnertoday. It served 5 of them yesterday. How many hot dogs wereserved today?

A:
11.0
****