Place Value: Written Form

Lesson Plan - Get It!

Audio:

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

In the previous Related Lesson, found in the right-hand sidebar, 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.