Draw base-ten blocks to represent the number 123. Be sure to label the hundreds, tens, and ones.

A drawing showing one hundreds block, two tens rods, and three ones units.

Explain how the position of each digit in the number 123 determines its value.

The digit 1 is in the hundreds place, so it represents 100. The digit 2 is in the tens place, so it represents 20. The digit 3 is in the ones place, so it represents 3.

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Representing 123

Name: Representing 123
Author: Insta~Lesson

5th GradeMath45 min

Learning Objective

I can represent the number 123 using base-ten blocks and expanded form.

Lesson Flow

Watch Video

8 min

Composing Numbers & Decomposing Numbers! | Mini Math Movies | Scratch Garden

Scratch Garden

Practice

14 min

7 questions • Multiple choice & Short answer

Exit Ticket

5 min

“Show one way to decompose the number 7 using apples.”

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