Are your students struggling with addition and subtraction with regrouping, especially when those skills appear in word problems? This 3rd grade addition and subtraction with regrouping unit includes 15 step-by-step math lessons designed to help students master 2-digit and 3-digit regrouping, build strong problem-solving skills, and gain confidence with challenging multi-step problems. Through clear instruction, strategy practice, and real-world math tasks, students develop a deeper understanding of how regrouping works.

This addition and subtraction with regrouping unit for 3rd grade combines strategy lessons, hands-on activities, math games, and targeted addition and subtraction word problems to support conceptual understanding and math fluency. Students explore multiple regrouping strategies before moving to the standard algorithm, allowing them to see the logic behind addition and subtraction while strengthening accuracy and problem-solving skills.enters, this resource makes planning and instruction straightforward and effective.

This resource focuses on addition and subtraction with regrouping. This unit is carefully structured to guide learners through every stage of addition and subtraction instruction, starting with conceptual understanding and strategy-building, and progressing toward standard algorithm practice. It includes daily lessons, guided activities, skill-building games, and word problems—because we know how important it is for students to make sense of math in real-world contexts.

What’s Included in This Resource?

This unit gives you 15 fully developed lessons covering a wide range of addition and subtraction strategies and problem types. The instruction is hands-on, visual, and focused on helping students make meaningful connections to the math they’re doing.

Here’s what you’ll find:

🔢 15 Daily Math Lessons

Each lesson introduces a specific strategy or concept related to addition or subtraction with regrouping. From mental math methods like friendly numbers and doubles, to more structured approaches like the standard algorithm, these lessons provide a balanced mix of theory, exploration, and practice.

Addition Lessons:

• Friendly Numbers
• Doubles/Near Doubles
• Place Value
• Adding Up
• Algorithm
  

Subtraction Lessons:

• Adding Up
• Removal
• Friendly Numbers
• Keeping a Constant Difference
• Algorithm
  

Word Problem Lessons:

• Joining Problems
• Parts and Wholes
• Removing Problems
• Comparing Problems
• Multi-Step Word Problems
  

Each lesson includes guided activities that can be used in whole-group instruction, small-group reteaching, or individual practice.

🎲 Hands-On Skills Practice & Games

After each strategy lesson, reinforce learning with fun, interactive practice activities and math games. These aren’t just busywork—they’re designed to deepen understanding and make math concepts stick. The games are perfect for math centers, small group instruction, or early finishers.

Addition Practice Activities:

• Addition Sort
• Rollin’ Addition
• Addition Mystery Picture
• Roll and Add
  

Subtraction Practice Activities:

• Subtraction Sort
• Roll and Subtract
• Subtraction Mystery Picture
• Spin and Subtract
  

Mixed Practice and Word Problems:

• Number Sentence Races
• Addition Word Problems
• Subtraction Word Problems
• Mixed Word Problems
• Multi-Step Word Problems
  

These activities require little to no prep, making them ideal for busy teachers who want effective, low-maintenance lessons.

Emphasis on Word Problems & Real-World Contexts

What sets this resource apart is the strong emphasis on word problems throughout the unit. Many students can perform calculations in isolation, but struggle when faced with applying those skills to real-world problems. This unit directly addresses that challenge by weaving word problems into each lesson and offering dedicated practice on every type of problem:

• Joining
• Removing
• Part-Part-Whole
• Comparing
• Multi-Step
  

Students will develop the confidence to read, interpret, and solve complex word problems with the tools and strategies they’ve practiced throughout the unit.

Key Features at a Glance:

• 15 fully planned addition and subtraction strategy lessons
• Step-by-step guidance for regrouping in 2-digit and 3-digit problems
• Focused instruction on solving word problems
• Low-prep practice games and worksheets
• Variety of problem types and strategies
• Skill-building for both conceptual understanding and procedural fluency
• Great for centers, guided math, or independent work
• Printable and ready to use
  

What Teachers Love About This Resource:

• “Everything I need in one place—lessons, activities, and word problems!”
• “My students finally understand the why behind regrouping.”
• “Perfect for differentiation—some students use the games for practice while others dive into multi-step problems.”
• “Easy to implement. I can pull out a lesson and be ready to teach in minutes.”
  

This resource is built with teachers in mind: no fluff, no filler—just proven strategies and effective practice materials that help your students grow.

Use this unit as a stand-alone resource or integrate it into your existing curriculum. Whether you’re looking for targeted lessons to reteach addition with regrouping and subtraction with regrouping, or want to build a full unit around these strategies, this pack gives you the flexibility to meet the needs of all learners.

It's especially useful for:

• RTI interventions
• Small-group instruction
• Whole-group instruction
• Homework assignments
• Test prep and review
  

Ready to Simplify Your Planning?

Make your math block more effective (and less stressful) with this done-for-you resource. All the lesson plans, worksheets, and practice activities are ready to print and teach.

Get started today and help your students make sense of addition and subtraction with regrouping—one strategy at a time!

3rd Grade Math Units

• Place Value Unit
• Rounding Unit
• Multiplication & Division Unit
• Fraction Unit
• Geometry Unit
• Area & Perimeter Unit

3rd Grade Math Review & Assessments

• 3rd Grade Math Review
• Math Assessments