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: Each day, the polar bear at Richmond's zoo eats 0.2 bucket of troutand 0.4 bucket of salmon. How many buckets of fish does the polarbear eat daily?

A: 0.6
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Q: Sally picked 7 lemons and Mary picked 9 lemons from the lemon tree. How many lemons were picked in total?

A: 16.0
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Q: Nancy grew 6 potatoes. Sandy grew 7 potatoes. How many potatoesdid they grow in total?

A:
13.0
****