Detailed Instructions: 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.
See one example below:
Problem: Joan found 70 seashells on the beach. She gave Sam some of her seashells, after which she has 27 seashell left. How many seashells did she give to Sam?
Solution: 43.0
Explanation: The total number of seashells found by Joan is 70. Since she now has 27 seashells left, it implies that she gave 70-27 = 43 seashells to Sam. Hence the correct answer till 1st decimal place is 43.0.

Problem: A farmer started the day with 8.7 buckets of seeds. After spendingthe morning sowing seeds, she now has 6 buckets. How manybuckets of seeds did the farmer sow?
Solution:
2.7