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 Everyday Examples
 Integer:  The set of numbers ...,-3,-2,-1,0,1,2,3,
Positive and negative integers are necessary to describe many situations in life. For example, when it is cold outside and the temperature drops below zero degrees Fahrenheit, we use negative numbers. 8 degrees below zero can be represented as -8 degrees Fahrenheit. Even though temperatures can have decimal values, they are most often reported on the news or street signs as integers.

Elevation is another type of number that is often represented as an integer. Some locations on earth, such as Death Valley, do not elevate above sea level. We say that these locations have a negative elevation. On the other hand, locations such as Mount Everest have very high elevations and are represented with positive integers.