In the previous post we have discussed about Adding and Subtracting Integers and In today's session we are going to discuss about Whole Number, By Whole Number, we mean the numbers which start from 0 and the series goes on increasing by adding 1 to the number. This series goes endlessly up to infinite. Thus we conclude that the series of the whole numbers include the numbers 0, 1, 2, 3, 4, . . . . up to infinite. Here we observe that every number has the successor in the series of the whole numbers and every number has the predecessor except the number 0. As 0 is the smallest number in this series.
Let us now check how the series of the natural numbers differ from the series of the whole numbers. The ordinary answer we have is that the series of the natural numbers start with the number 1 and the series of the whole numbers start with the number zero. But we could observe the main difference between the two series of the numbers which is as follows :
The natural numbers are the counting numbers, it means we use the series of the natural numbers when we need to do the counting of any objects, persons etc. But the whole numbers are used with the vector units, it means that when ever we need to measure certain units such as length, weight, temperature, speed etc, these measuring units can not be started with 1. So we use whole numbers in such cases. We conclude by saying that the whole numbers are the measuring numbers.
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