Adding 4-Digit Numbers With Regrouping

MatholiaChannel

This educational video provides a step-by-step tutorial on adding 4-digit numbers with regrouping, using the standard vertical column method. It presents two distinct examples: a real-world word problem involving bookstore sales to demonstrate practical application, and a direct calculation problem to reinforce procedural fluency. The video breaks down the addition process by place value—starting from the ones and moving to the thousands—ensuring students understand the sequential nature of the algorithm. A key feature of the video is its visual explanation of regrouping (carrying over). When a column sums to more than 9, the video explicitly demonstrates how to regroup values, such as converting 12 hundreds into 1 thousand and 2 hundreds. This is supported by clear on-screen text, column highlighting, and a character visualization using place value discs to bridge the gap between conceptual understanding and abstract calculation. This resource is highly valuable for introducing or reviewing multi-digit addition in upper elementary classrooms. It supports teachers by providing a clear visual model for algorithms that can sometimes be abstract for students. The step-by-step pacing allows for paused instruction, where teachers can check for understanding at each place value column before proceeding. It effectively addresses the common student error of forgetting to carry numbers or misaligning place values.