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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See Also

What is a positive number? What is a negative number? What is a number line? What is a fraction?