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 had 7 dimes in her bank. Her dad gave her 8 dimes and hermother gave her 4 dimes. How many dimes does Melanie have now?
answer:
19.0

question:
Sara picked 35 pears and 27 apples from the orchard. She gave 28pears to Dan. How many pears does Sara have?
answer:
7.0

question:
Tim found 679 seashells and 110 starfish on the beach. He gave 172of the seashells to Sara. How many seashells does Tim now have?
answer:
507.0