Reading and Writing Whole Numbers in Expanded Form

The video tutorial explains how to write the number 20,430 in expanded form. It begins by introducing the concept of expanded form and the importance of place value. The number is broken down into thousands and ones groups using a place value chart. The tutorial highlights non-zero digits and calculates their values based on their positions. Finally, it demonstrates how to express the number in expanded form by adding the values of the non-zero digits, resulting in 20,000 + 400 + 30, which sums up to the original number.

What is the first step in writing a number in expanded form?

• Add all the digits together

• Write the number in a place value chart

• Multiply each digit by 10

• Convert the number to a fraction

In the number 20,430, which digit is in the hundreds place?

• 2

• 4

• 0

• 3

Why do we ignore the zeros when writing a number in expanded form?

• They are not part of the number

• They are not important

• They represent a value of zero

• They are only placeholders

What is the value of the digit 2 in the number 20,430?

• 2

• 200

• 2,000

• 20,000

How would you express the number 20,430 in expanded form?

• 20,000 + 400 + 30

• 200 + 40 + 30

• 2,000 + 40 + 3

• 20,000 + 4 + 3