instruction:
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.
question:
Joan spent $15 on shorts and $14.8 on a jacket, and $12.5 on ashirt. She went to 3 shops. In total, how much money did Joanspend on clothing?
answer:
42.3

question:
Sandy's dog had 8 puppies and 4 had spots. She gave 4 to her friends. How many puppies does she now have?
answer:
4.0

question:
Jason grew 37 watermelons and 30 pumpkins. Sandy grew 11watermelons. How many watermelons did they grow in total?
answer:
48.0