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.
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Question: A restaurant made 9 hamburgers to serve during lunch. Only 3 wereactually served. How many hamburgers were over from lunch?

Answer: 6.0


Question: A dust storm sweeps across the prairie. It covers 64535 acres of theprairie in dust, but leaves 522 acres untouched. How many acresdoes the prairie cover?

Answer: 64013.0


Question: A carpenter bought a piece of wood that was 0.43 meters long. Thenshe sawed 0.33 meters off the end. How long is the piece of woodnow?

Answer:
0.1