Adding Three-Digit Numbers Using Expanded Form

This video tutorial teaches how to add three-digit numbers using expanded form. It begins with an introduction to the concept of expanded form, explaining how to break down numbers into hundreds, tens, and ones. The tutorial provides three examples: adding 384 and 415, 731 and 256, and 324 and 131. Each example is demonstrated step-by-step, showing how to expand the numbers and add each place value separately to find the sum. The lesson concludes with a recap of the method and its application.

What is the expanded form of the number 222?

• 22 + 200

• 200 + 20 + 2

• 20 + 2 + 200

• 2 + 2 + 2

When using expanded form, what is the sum of the hundreds in 384 and 415?

• 800

• 700

• 400

• 300

In the example of adding 384 and 415, what is the sum of the tens?

• 90

• 80

• 110

• 100

Using expanded form, what is the sum of 731 and 256?

• 957

• 987

• 977

• 967

What is the final sum of 324 and 131 using expanded form?

• 455

• 475

• 465

• 445