*Contributor: Meghan Vestal. Lesson ID: 11806*

Threesixtwofiveonehundreddecimalfourtyzeroone. Does that make sense? There is a certain way to write out numbers so they can be understood. Learn the little pieces that are needed to show place value!

categories

subject

Math

learning style

Visual

personality style

Lion, Beaver

Grade Level

Intermediate (3-5)

Lesson Type

Quick Query

Each of the following examples shows the same number written a different way. Which example shows the number in *written form*? Read on to find out why it's important!

If you said the first example is shown in written form, you are correct!

In the previous lesson, Place Value: Standard Form, you learned about numbers written in *standard form*. Tell your teacher or parent which example is written in standard form.

The third example is written in standard form, which is how you will see numbers written most often.

In this lesson, you will learn how to read, write, and compare numbers in written form. Written form is exactly what it sounds like: it is the number spelled out using words. Look at each of the examples below. The left column shows the number written in standard form, and the right column shows the same number written in written form. Tell your teacher or parent what you observe as you look at each example:

A few things you should have noticed when examining each of the numbers shown in written form:

- Like numbers written in standard form, the whole numbers are grouped into sets of three numbers. These groupings, also known as
*periods*, are separated with*commas*. When reading a number, the comma represents a*pause*. - The decimal is represented by the word "and."
- Place values behind the decimal always end in "–th," like four tenths.
- A hyphen (-) should be used between numbers that end in "–ty." For example, thirty-five, fifty-four, eighty-nine, etc.

Now that you have looked at examples of numbers in written form, move on to the *Got It?* section to practice writing numbers in written form.

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