Whole numbers are the set of natural numbers incorporating with . is the smallest whole number. Whole numbers are

All- natural numbers are whole numbers, yet all whole numbers are not natural numbers.

__Predecessor and Successor__

- A successor of any number is the following number to it, which is acquired by adding .
- A predecessor of any number is the past number to it, which is acquired by taking away .

For example, predecessor and successor of the number is and which is and .

We will also learn about number line and operations performed on number line.

A number line is a representation of all the real number. The distance between all the different points is known as unit distance.

We need to understand different properties of whole number to be able to solve certain types of sums:

**Closure property:-**This property tells us how whole numbers are closed under addition and multiplication.**Commutative property:-**This property tells us how we can add and multiply whole numbers in any order.**Associative property :-**

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