Understanding Three-Digit Numbers

This video tutorial covers Module 5, Lesson 5, focusing on understanding and representing three-digit numbers in various forms. The lesson begins with an introduction to the learning objective, which is to find and express three-digit numbers in different ways. The first problem involves identifying a number on a number line and expressing it in words and pictures. The second problem requires writing the number 912 in different forms, including expanded form. The lesson concludes with a check for understanding, where students identify a number on a number line and express it in various forms.

What is the main goal of this lesson?

• To learn about fractions

• To understand three-digit numbers

• To practice multiplication

• To explore geometry

What number is represented by the blue dot on the number line?

• 640

• 635

• 639

• 638

How is the number 639 written in words?

• Six hundred thirty-eight

• Six hundred forty

• Six hundred thirty

• Six hundred thirty-nine

How many hundreds are in the number 639?

• 9

• 3

• 6

• 5

What is the expanded form of the number 912?

• 900 + 10 + 2

• 910 + 2

• 900 + 12

• 900 + 2

How many tens are in the number 912?

• 2

• 9

• 1

• 10

What number is represented by the green dot on the number line?

• 457

• 456

• 455

• 454

What is the value of the digit 4 in the number 456?

• 400

• 4

• 450

• 40

What is the value of the digit 5 in the number 456?

• 500

• 50

• 55

• 5

What is the number name for 456?

• Four hundred sixty

• Four hundred fifty-six

• Four hundred sixty-five

• Four hundred fifty