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Compare Three-Digit Numbers

Use place-value ideas and visual models to compare three-digit numbers one place at a time.

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Beginner 15–20 minutes Number & Operations in Base Ten
Number & Operations in Base Ten Page 6 of 15
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At a Glance

Compare Three-Digit Numbers
Binder SectionNumber & Operations in Base Ten
DifficultyBeginner
Estimated Time15–20 minutes
PrerequisitesNone
Essential Question

How can place value and a clear model help us compare three-digit numbers one place at a time?

Visual Model
4Thousands 3Hundreds 2Tens 7Ones

4,327 = 4,000 + 300 + 20 + 7

Goals

Learning Targets

  • I can name the value of each digit.
  • I can choose a place-value model or strategy that fits the problem.
  • I can solve and check my answer.
Click each word

Interactive Vocabulary

Reveal one step at a time

Worked Examples

Example 1

Compare 538 and 583

1

Both numbers have 5 hundreds.

Notice and correct

Common Misconceptions

Reading a digit without naming its place

Say both the digit and its value.

Misaligning places

Line up equal place values, especially decimal points.

Regrouping without explaining the trade

State which 10 smaller units become 1 larger unit.

Skipping a reasonableness check

Estimate before or after calculating.

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Warm-Up Guided Independent Challenge
1
Quick Start

Warm-Up

Warm-up 1

Directions: Use a quick place-value model. Label what each digit or quantity means.

Which is greater: 704 or 740?

Picture both groupsUse the picture to organize what you know before you solve.
4 objects6 objects?

Choose how you want to work or answer.

2
We Do

Guided Practice

Guided 1

Directions: Follow each step. Build or draw the model, write the calculation, and explain each place-value move.

Compare 629 and 629 using >, <, or =.

Picture both groupsUse the picture as you work through each step.
4 objects6 objects?

Choose how you want to work or answer.

3
You Do

Independent Practice

Independent 1

Directions: Choose a model or algorithm, show your work, and enter your final answer.

Order 405, 450, and 540 from least to greatest.

Picture both groupsUse the picture to organize what you know before you solve.
4 objects6 objects?

Choose how you want to work or answer.

4
Stretch Your Thinking

Challenge & Real-World Practice

🧩 Challenge

Create two three-digit numbers that differ only in the tens place, then compare them.

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Success Criteria

Before you begin, I can…

  • I can explain the value of a digit using correct vocabulary.
  • I can use a model and an efficient calculation strategy.
  • I can check whether my answer is reasonable.
1
Question 1

Why must digits be aligned when adding?

2
Question 2

What does regrouping mean?

3
Question 3

Which check is useful after calculating?

4
Question 4

A digit one place to the left is how many times the value?

5
Question 5

Why use a visual model?

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Next Lesson: Add and Subtract Within 1,000 → Back to Binder Topics

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