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# Whole Numbers

(KS2, Year 4)

## The Lesson

The whole numbers are the numbers:## Whole Numbers As Counting Numbers

Whole numbers can be used to count a whole number of objects or say whether there are no objects at all.**Note:**Mathematicians usually call the numbers from 1 upwards (1, 2, 3...) counting numbers or natural numbers. If we include 0, this becomes the whole numbers.

## Whole Numbers on the Number Line

The image below shows the whole numbers on the number line.**Note:**The whole numbers are not found in between the numbers shown.

## What Whole Numbers Are

Whole numbers are integers that aren't negative.## What Whole Numbers Are Not

Whole numbers are**not**negative (such as -1) and are

**not**fractions (part of a whole number, such as ½ or 0.3).

## The Whole Numbers Are the Natural Numbers Plus 0

The whole numbers are the set of natural numbers with 0 included. If the natural numbers are: 1, 2, 3... The whole numbers are:**0**, 1, 2, 3...

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