Human: The highest temperature ever recorded in Southlandia is -48 degrees Fahrenheit. The highest temperature ever recorded in Northlandia is 21 degrees Fahrenheit. The highest temperature recorded in Midlandia is -3 degrees Fahrenheit. What is the average highest temperature of these 3 countries? Assistant: 
What is the sum of the highest temperatures of these 3 countries? ** -48 + 21 + (-3) = <<-48+21+(-3)=-30>>-30
What is the average of the highest temperatures of these 3 countries? ** -30/3 = <<-30/3=-10>>-10 degrees
What is the average highest temperature of these 3 countries? ** The average highest temperature recorded in Southlandia, Northlandia, and Midlandia is -10 degrees Fahrenheit.
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