Jumping backward on a number line to find the difference.

The fundamental process involves trading one ten from the tens place for ten ones .

Videos often use base-ten blocks or place value charts to show that the value of the number remains the same (e.g., changing 42 from "4 tens, 2 ones" to "3 tens, 12 ones"). 2. Key Instructional Strategies

This report outlines the key educational components, strategies, and benefits of using instructional videos to teach (also known as "borrowing"). 1. Core Concept: Understanding Regrouping

Breaking numbers into tens and ones (e.g., 42 becomes ) to make the subtraction of each place value clearer.