3-digit addition with regrouping can be a challenging concept for elementary students to grasp. However, with the right teaching strategies, you can make this math skill accessible and engaging. Below you’ll find three effective ways to teach 3-digit addition with regrouping using the CRA model… moving from Concrete to Representational to Abstract.
Looking for some NO prep practice activities that you can use right away in your classroom? Click on the image or button below.
Concrete Manipulatives Assist in 3-Digit Addition with Regrouping
Start with hands-on learning using concrete manipulatives. Tools like base-ten blocks, counters, or even simple everyday objects can help students visualize the regrouping process. Begin with simple examples, allowing students to physically trade tens for ones or hundreds for tens. This tangible experience lays the foundation for understanding regrouping.
It’s fun to include food as manipulatives, too! Use cereal as ones, pretzel sticks for tens, and Cheez-Its (or square crackers) for hundreds. Give students a problem and have them solve it with their manipulatives. Then, reinforce the concept by discussing what they did and why.
Teaching 3-Digit Addition with Representational with Models
Visual aids can be invaluable when teaching 3-digit addition with regrouping. Create visual representations of the process on the board or using digital tools. The Base Ten Blocks from Cool Math 4 Kids are a great tool to simulate how ones, tens, and hundreds regroup for addition problems. Encourage students to draw or create models that illustrate the addition and regrouping steps. Visual aids help learners see the connections between numbers and the necessity of regrouping.
Abstract with the Algorithm
After students have mastered the concept of addition with concrete manipulatives and visual aids, move to using the algorithm and show step-by-step how to solve addition problems. Guide students through the process, breaking it down into manageable steps. Gradually increase the complexity of problems to ensure students are comfortable with regrouping.
When first completing this method on paper, using grid paper or turning notebook paper sideways helps students line up the places.
I created this digital 3-digit Addition with Regrouping practice in Google Slides to give students additional practice in multiple ways. Students are really engaged with the drag and drop numbers and stay focused on practicing with this activity.
Teaching three-digit addition with regrouping may initially seem daunting, but by using a combination of concrete manipulatives, visual aids, step-by-step practice with the algorithm, you can help your students master this essential math skill. Encourage persistence and provide ample opportunities for practice, and soon your students will become confident with a solid grasp of three-digit addition with regrouping.
Pin It for Later!
Pin the image below to your favorite math Pinterest board to save these addition strategies for later!
6 Responses
I love these ideas! So creative to use food as manipulatives.
Thank you, Aryanna! Using food is always a winner with students. :)
I love the food hands-on. I used that but used the Chex cereal as the hundreds. The kids love it.
Hi Amanda. The Chex cereal is a great idea!
Great ideas. My students would love to use the food as manipulatives.
It’s always fun to use food and helps keep the students interested.