I am a huge advocate for teaching students the **WHY** before the **PROCEDURE** when learning a new math concept. I am a firm believer that teachers owe it to their students to teach them multiple ways to solve math problems. We all learn concepts in different ways and math is no different. With that said, this post is going to explain several different addition with regrouping strategies that you can teach your students so that they can better understand this concept.

## Place Value Mats

Before I start my addition with regrouping unit, I spend a month teaching place value. Students must be solid in their place value understanding to truly understand the WHAT and WHY of addition with regrouping. The first day of teaching this skill, my students receive unifix cubes and they learn what regrouping looks like. You can also use place value blocks but I like that unifix cubes can be pulled apart and pushed together. We always start with a two-digit number on top and a one-digit number on the bottom. Here’s how I teach it:

As I am going through this lesson, I have students who seem to be able to grasp the concept, come up and show the class how to do it all while explaining what they are doing. When students explain their thinking and thought process, it is extremely powerful.

After a day or two of teaching this concept using the place value mat, I will have them move to paper and pencil solving but still provide them with their unifix cubes and place value mat to build and solve each problem. Make sure to scoop up your FREE place value mat before going any further!

One tip is to give your students highlighters and have them go through their worksheet and highlight the ones place so that they have the visual reminder of where to start solving their math problems.

Be watchful of those who just want to take the two-digit number and count on. Although this is a practical way to solve these problems, you must be also thinking about the concept that you are trying to teach them…regrouping.

Next, we move to two-digit numbers on top and bottom. Of course, we go back to the math manipulatives to help them see and understand the process of regrouping.

We continue to highlight the ones place at this stage. I want to make it a habit for my students to always start with the ones place first. This concept is more complicated for them then we realize. They are trained to read and write from left to right so starting them on the right side of the problem tends to cause some students to struggle.

As I stated at the top of this post, I am a firm believer in teaching students multiple ways to solve problems because you never know what will connect with them. Here are a few more ways that I have shown my students how to solve addition with regrouping problems.

## Post-it Note Method

## Break It Up Method

## Slice & Split Method

Once your students find a method or two that they feel comfortable using, it’s important to provide plenty of opportunities to practice! Here are some resources that you can start using in your classroom today! (links below image)

**MATH RESOURCES FOR YOUR CLASSROOM**

2-Digit Addition Task Cards

3-Digit Addition Task Cards

2-Digit Color By Number Year-Long Bundle

Addition with Regrouping Math Notebook

2-Digit Addition with QR Codes Task Cards

3-Digit Addition with QR Codes Task Cards

Math Toothy**® **Task Kit Bundle

Math Puzzles Bundle

2nd Grade Math Centers Bundle

Angel Honts says

I love these ideas!! Thank you so much!

Angie Olson says

You are welcome, Angel!

Sebrina Burke says

Angie, loved, loved, loved your scope! This is an amazing follow up post. Pinned and shared it so that others can see these great strategies in action. I would love to see a follow up post involving the strategies you use for subtraction with regrouping! Thank you for being AMAZING!

Sebrina

Burke's Special Kids

Angie Olson says

Thank you for leaving such sweet and thoughtful feedback, Sebrina! I'm so glad you caught my scope too! I plan to bring a subtraction with regrouping post this coming Monday!

Jo-Anne Sweet on Second says

You did a great job presenting these strategies! I watched your presentation over my morning coffee and walked away with some great ideas. I've never used the highlighter strategy; love how visual that is and that it costs nothing to add to our classroom routines. Love your place value mat too! Thanks for sharing your hard work! 🙂

Angie Olson says

You're welcome Jo-Anne! Glad these could be helpful to you! There's nothing better than a free and practical tip, right?!

Karyl Lawrence says

Thank you so much for all you do and for sharing it! It is so appreciated! ?

Angie Olson says

Thank YOU for taking the time to tell me that, Karyl! I appreciate you leaving me feedback…it keeps me inspired!

Leslie Moore says

Thank you so very much!!! I will be incorporating these into my unit. We are starting subtraction with regrouping now. I would really LOVE to know if you have some wonderful ideas for that too!

Angie Olson says

Hi Leslie! I have some big plans for subtraction with regrouping and I plan to do a scope on that for Math Motivation Monday this coming Monday! I hope you can tune in!

Jen Bonner says

This is brilliant! Thank you for the mat freebie! I think this is EXACTLY what my struggling learners need, a different visual and it's perfect!

Alice Tan says

Hi Angie, thank you for the great tips! You really make my day. I simply love how you use the manipulatives and make Maths so fun! The manipulative I use most are the unifix cubes but the post-it idea is simply awesome – so easy and so visual!

Ro says

I’m a kindergarten teacher and love these ideas. I know my kiddos are slowly getting regrouping but I definitely want to show them some of the cool

Ideas to show place value when adding! 🙂

Asha says

excellent.. thanks alot.. i have a struggling child, i hope these works..

Clara says

Omg, I love these idea to teach regrouping, my students are engage in the lesson rather than me the teacher have the load, thanks very much for the idea