# Cardinal, Ordinal

and Nominal Numbers

*Cardinal: how many
Ordinal: position
*

*Nominal: name*

## Cardinal Numbers

A Cardinal Number says **how many** of something, such as one, two, three, four, five, etc.

Example: here are **five** coins:

It does **not** have fractions or decimals, it is only used for counting.

How to remember: "Cardinal is Counting"

## Ordinal Numbers

An Ordinal Number tells us the **position** of something in a list.

**1st, 2nd, 3rd, 4th, 5th** and so on (see Cardinal and Ordinal Numbers Chart for more.)

### Example: In this picture the girl is **2nd**:

And the two pups are **3rd** and **4th**.

How to remember: "Ordinal says what Order things are in".

## Nominal Numbers

A Nominal Number is a number used only as a **name**, or to identify something (not as an actual value or position)

### Examples:

- the number on the back of a player: "8"
- a zip code: "91210"
- a model number: "380"

How to remember: "Nominal is a Name".

## Example With Everything

In this photo there are **6** cars. Car Number **"99"** (with the yellow roof) is in **1st** position:

**6**is a Cardinal Number (it tells how many)**1st**is an Ordinal Number (it tells position)**"99"**is a Nominal Number (it is basically just a name for the car)