In this lesson, students learn how to expand a number to add or subtract 10 or 100 using expanded form. The teacher explains the concept by breaking down numbers into their place values and demonstrates how to perform the operations step-by-step.
In this lesson, students learn how to expand a number to add or subtract 10 or 100 using expanded form. The teacher explains the concept by breaking down numbers into their place values and demonstrates how to perform the operations step-by-step.