Question: 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?
Can you solve this problem?
Answer: 
-48 + 21 + (-3) = -30
-30/3 = -10 degrees
The average highest temperature recorded in Southlandia, Northlandia, and Midlandia is -10 degrees Fahrenheit.