Overview

4th Grade Math

3. 4.OA.A.3

3.1 Subtracting with regrouping (using base ten blocks)

Subtraction with Regrouping: Mastering Math with Base Ten Blocks

Discover how base ten blocks make subtraction with regrouping easy to understand. Enhance your math skills with visual, hands-on learning that brings numbers to life and builds a strong foundation for future math concepts.

What You'll Learn

Identify when borrowing is needed in subtraction problems

Apply regrouping to exchange place values using base ten blocks

Subtract multi-digit numbers by aligning and regrouping place values

Verify subtraction results by checking borrowed amounts and remainders

What You'll Practice

Subtracting two-digit numbers requiring regrouping from tens to ones

Subtracting three-digit numbers with borrowing from hundreds to tens

Using base ten block models to visualize regrouping steps

Solving word problems involving subtraction with multiple regrouping steps

Why This Matters

Subtracting with regrouping is essential for handling real-world situations like calculating change, measuring differences, and managing budgets. Mastering this skill builds your confidence with multi-digit arithmetic and prepares you for more advanced math concepts like algebra and problem-solving.

This Unit Includes

8 Video lessons

Practice exercises

Learning resources

Skills

Subtraction

Regrouping

Borrowing

Place Value

Base Ten Blocks

Multi-digit Operations

IL Curriculum Aligned