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: 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?

SOLUTION: 0.3

PROBLEM: Melanie bought a Batman game for $6.97, a strategy game for $7.90, and a Superman game for $7.73. Melanie already owns 4 games.How much did Melanie spend on video games?

SOLUTION: 22.6

PROBLEM: Joan's cat had 8 kittens. She gave 2 to her friends. How many kittensdoes she have now?

SOLUTION:
6.0