Finding the Value of Digits Using Models

This lesson teaches how to determine the value of each digit in a number by using models. It covers the standard, expanded, and word forms of numbers, and addresses common misunderstandings about digit values. The lesson demonstrates how the value of a digit changes with its position in a number and uses models to visualize these values. Examples include rearranging digits and drawing models to represent numbers like 157 and 715. The lesson concludes with a recap of the key concepts learned.

What is the expanded form of the number 15?

• 10 + 5

• 1 + 5

• 5 + 10

• 15

If the digit '1' in the number 15 is moved to the ones place, what is its new value?

• 15

• 1

• 5

• 10

In the number 157, how many tens are there?

• 10

• 7

• 5

• 1

How many hundreds are there in the number 715?

• 7

• 5

• 1

• 10

What is the value of the digit '5' in the number 562?

• 500

• 5000

• 50

• 5