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:
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?
answer:
22.6


question:
There are 39 dogwood trees currently in the park. Park workers willplant 41 dogwood trees today and 20 dogwood trees tomorrow. Howmany dogwood trees will the park have when the workers arefinished?
answer:
100.0


question:
Mike had 33 quarters and 87 nickels in his bank. His dad borrowed 75nickels from Mike. How many nickels does he have now?
answer:

12.0