Definition: 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.
Input: Jason picked 46 pears, Keith picked 47 pears, and Mike picked 12pears from the pear tree. How many pears were picked in total?

105.0