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.

Q: After paying 6 dollars for the pie, Mary has 52 dollars, her friend has43 dollars. How much money did she have before buying the pie?

A: 58.0
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Q: Irene just bought a new lamp for her bedside table. The old lamp was 1 foot tall and the new lamp is 2.3 feet tall. How much taller is the new lamp than the old lamp?

A: 1.3
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Q: Sara picked 6 pears and Tim picked 5 pears from the pear tree. Howmany pears were picked in total?

A:
11.0
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