Expanded Form and Powers of 10

Charlie, a math teacher, explains how to write numbers in expanded form using powers of 10. He uses the number 4927 as an example, breaking it down into its components and then converting it into a format that uses powers of 10. The lesson emphasizes understanding the concept of 10 raised to the zeroth power, which equals one. The tutorial concludes with a recap of the key points covered.

Who is the teacher introducing the lesson on expanded form?

• Charlie

• Alex

• Jordan

• Taylor

What is the first step in writing 4927 in expanded form?

• Division

• Subtraction

• Basic addition

• Using powers of 10

What is the expanded form of 4927 using basic addition?

• 4 + 9 + 2 + 7

• 40 + 9 + 2 + 7

• 400 + 90 + 2 + 7

• 4000 + 900 + 20 + 7

How is the number 4927 expressed using multiplication in expanded form?

• 4 * 10 + 9 * 1 + 2 * 0 + 7 * 0

• 4 * 1 + 9 * 10 + 2 * 100 + 7 * 1000

• 4 * 1000 + 9 * 100 + 2 * 10 + 7 * 1

• 4 * 100 + 9 * 10 + 2 * 1 + 7 * 0

What is the significance of the units digit in powers of 10?

• It is always 10 to the power of 3

• It is always 10 to the power of 1

• It is always 10 to the power of 0

• It is always 10 to the power of 2

How is the number 4927 expressed using powers of 10?

• 4 * 10^0 + 9 * 10^3 + 2 * 10^2 + 7 * 10^1

• 4 * 10^1 + 9 * 10^0 + 2 * 10^3 + 7 * 10^2

• 4 * 10^2 + 9 * 10^1 + 2 * 10^0 + 7 * 10^3

• 4 * 10^3 + 9 * 10^2 + 2 * 10^1 + 7 * 10^0

Which digit in 4927 is multiplied by 10 to the power of 3?

• 9

• 7

• 2

• 4

Which digit in 4927 is multiplied by 10 to the power of 2?

• 9

• 2

• 4

• 7

Which digit in 4927 is multiplied by 10 to the power of 1?

• 7

• 2

• 9

• 4

Which digit in 4927 is multiplied by 10 to the power of 0?

• 4

• 9

• 2

• 7