Adding Two-Digit Numbers Without Regrouping

MatholiaChannel

This educational video provides a clear, step-by-step guide to adding two-digit numbers up to 100 without regrouping (carrying). The video uses a scaffolded approach, beginning with concrete visual representations using base-10 blocks before transitioning to abstract numerical calculations. It explicitly demonstrates the standard vertical column addition method, reinforcing the crucial concept of place value by separating calculations into 'Tens' and 'Ones' columns.