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: Kendra made punch for her friend's birthday party. She used 0.25 gallon of grape juice, 0.35 gallon of cranberry juice, and 0.2 gallon of club soda. How many gallons of punch did Kendra make?

SOLUTION: 0.8

PROBLEM: Mary found 45 seashells, Melanie found 23 seashells, and Jasonfound 32 seashells on the beach. When they cleaned them, theydiscovered that 31 were cracked. How many seashells did they findtogether?

SOLUTION: 100.0

PROBLEM: A carpenter bought a piece of wood that was 8.9 centimeters long.Then he sawed 2.3 centimeters off the end. How long is the piece ofwood now?

SOLUTION:
6.6