Regrouping Objects: Trading Ones, Tens, and Hundreds

This video tutorial teaches students how to regroup numbers by trading ones, tens, and hundreds. It begins with an introduction to the concept of regrouping and a review of the number system, highlighting the importance of place values. The lesson then uses base 10 blocks to visually demonstrate how ones can be grouped into tens and tens into hundreds. Through various number models, students learn to identify and perform regrouping operations. The tutorial concludes with a recap of the key concepts, ensuring students understand how to apply regrouping in different scenarios.

What is the total number of digits in our number system?

• 15

• 20

• 10

• 5

How many individual cubes make up a rod in base 10 blocks?

• 20

• 5

• 10

• 15

What do ten rods combine to form in base 10 blocks?

• A cube

• A pyramid

• A flat

• A sphere

In the example, what does the number model with six tens and fifteen ones become after regrouping?

• Six tens and ten ones

• Eight tens and four ones

• Five tens and six ones

• Seven tens and five ones

After trading ten tens for a flat, what does the number model with one hundred, ten tens, and six ones become?

• Two hundreds, ten tens, and six ones

• One hundred, zero tens, and six ones

• Two hundreds, zero tens, and six ones

• One hundred, ten tens, and zero ones