Adding Three-Digit Numbers Using Expanded Form

Adding Three-Digit Numbers Using Expanded Form

Assessment

Interactive Video

Mathematics

1st - 6th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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.

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2 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What method did Lily use to find the sum of 731 plus 256?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

Explain how to add the hundreds, tens, and ones when calculating 324 plus 131.

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