Decomposing Numbers for Addition

The video tutorial explains how to add three-digit numbers using the decomposing strategy. It begins by introducing the concept of decomposing, which involves breaking numbers into their place values. The tutorial demonstrates this with the numbers 234 and 466, showing how to decompose each number into hundreds, tens, and ones. It then guides viewers through the process of adding these decomposed numbers step by step, starting from the ones place and moving to tens and hundreds. The video concludes with a summary and additional tips for using decomposing effectively.

What is the main strategy discussed in the video for adding three-digit numbers?

• Guessing the answer

• Using a calculator

• Using subtraction

• Decomposing based on place values

What is the value of the digit '2' in the number 234 when decomposed?

• 200

• 20

• 2000

• 2

How is the number 234 decomposed?

• 200 + 3 + 4

• 20 + 30 + 4

• 200 + 30 + 4

• 2 + 30 + 40

What is the value of the digit '4' in the number 466 when decomposed?

• 40

• 4000

• 4

• 400

How is the number 466 decomposed?

• 400 + 60 + 6

• 4 + 60 + 600

• 40 + 60 + 6

• 400 + 6 + 60

What is the sum of the ones place digits 4 and 6?

• 11

• 8

• 9

• 10

What is the sum of the tens place values 30 and 60?

• 110

• 80

• 90

• 100

What is the sum of the hundreds place values 200 and 400?

• 500

• 600

• 700

• 800

What is the total sum of 600, 90, and 10?

• 720

• 690

• 700

• 710

What is the first step in adding decomposed numbers?

• Add all at once

• Add the ones place

• Add the tens place

• Add the hundreds place