03/20/2025
Mastering Addition with Regrouping: K to Grade 2 Journey
Regrouping is foundational for developing strong number sense and problem-solving skills
Learning addition with regrouping marks a significant milestone in Grade 1 as it introduces kids to the essential concept of place value initially. At this stage, many students still use counting methods for adding within teen numbers, which is appropriate for Kindergartners.
However, it's important for students to also begin practicing and mastering strategies such as decomposing both single-digit and teen numbers, making ten, and adding onto a ten.
Why? Because mastering these techniques lays a solid groundwork for understanding more advanced topics like addition with carrying larger whole numbers in Grades 1 and 2. As such, teaching how to add with regrouping really starts in Kindergarten using base ten blocks and in Grade 1 using a place value chart!
How to teach adding with regrouping
Regrouping in math refers to the practice of grouping numbers by place value (tens, hundreds, thousands, etc.) during addition. The process of teaching adding with regrouping involves helping students understand that they need to add each place value separately and progress to higher place values as needed.
This method becomes particularly useful for adding larger numbers efficiently. The process of adding 2 digit numbers with regrouping is the same as adding three digit numbers with regrouping or adding 4 digits with regrouping.