Subtracting Using Expanded Notation

This video tutorial teaches how to subtract 10 or 100 from a number using expanded notation. It begins with a review of place value, explaining the significance of hundreds, tens, and ones. The tutorial then demonstrates subtracting 100 and 10 from various numbers, emphasizing the changes in place value. Through examples, it shows how only the hundreds or tens place changes when subtracting 100 or 10, respectively, while the other digits remain unchanged.

Provide an example of subtracting 10 from a three-digit number using expanded notation.

What happens to the tens and ones places when subtracting 10 from a number?

What is the result of subtracting 100 from 435, and how do you arrive at that answer?