In this lesson, we will learn how to write numbers in expanded form, standard form and word form.
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Expanded Form
Numbers can be written in expanded form. Expanded form can be demonstrated in two ways.
For example:
4123 = 4,000 + 100 + 20 + 3
or
4123 = (4 × 1,000) + (1 × 100) + (2 × 10) + (3 × 1).
50,302 = 50000 + 300 + 2
or
50,302 =
(5 × 10,000) + (3 × 100) + (2 × 1).
A place value chart may be helpful when writing in expanded form.
Place Value Chart

Millions
1,000,000

Hundred Thousands
100,000

Ten Thousands
10,000

Thousands
1,000

Hundreds
100

Tens
10

Units/ Ones
1

Standard form, Word form, Expanded form
How to write numbers in Standard form, Word form and Expanded form?
Examples:
1. Standard Form: ____
Word Form: ninetytwo thousand, one hundred seventy
Expanded form: ____
2. Standard Form: 200,007
Word Form: ____
Expanded Form: ___
3. Read and write the following numbers in different forms
a) 40,000 + 1,000 + 300 + 70 + 8
b) Twentyseven thousand, six hundred fifteen
Place Value
Review of basic place value concepts
Example:
The total number of people who visited the Ocean Adventure Park last year was 7,040,836. What is the value of the digit 4 in this number?
Place ValueExpanded Form
Standard Form, Expanded Form, and Word Form of Numbers (Up to Thousands)
Learn to write numbers in standard, expanded, and word form.
Example:
a. Express 3,527 in expanded form and word form.
b. Express two thousand four hundred sixtyfive in standard form.
Standard Form, Expanded Form, and Word Form of Numbers (up to Millions)
Learn to write numbers in standard form, word form, and expanded forms.
Example:
a) Write the word name of the number 125,470,000.
b) Write the number thirty six million, two hundred nine thousand, three hundred fiftyfive in standard form and expanded form.
c) The Jurassic Period was 205,000,000 to 138,000,000 years ago. Brachiosaurus walked on Earth 143,000,000 years ago. Write each of these numbers as short word names.
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