Describe the characteristics of each set of numbers that make up the set of integers

There are different types of numbers: they could be natural numbers, whole numbers, rationals, real numbers and integers. Integers are a set of numbers consisting of positive and negative numbers excluding decimals and fractions. The following are its characteristics: 

*Negative numbers mean numbers that are below zero. 

*Zero is part of the set of integers. 

*Number categories overlap with each other. 

*When writing a set of integers, they must be inside a bracket ‘{}’ and with ellipses “…”. 

*When adding or subtracting integers, use a number line.