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:
Sam found 18 seashells and Mary found 47 seashells on the beach.How many seashells did they find together?
answer:
65.0


question:
Joan's high school played 864 baseball games this year, 128 of thegames were played at night. She attended 395 games. How manybaseball games did Joan miss?
answer:
469.0


question:
Sandy grew 51 pumpkins. Mike grew 23 pumpkins. How manypumpkins did they grow in total?
answer:

74.0