Curated Video
Representing Decimal Numbers in Expanded Notation Using Base 10 Blocks
In this video, the teacher explains how the value of each digit in a decimal number is determined by its position, and demonstrates this concept with examples. By the end of the lesson, students will be able to write numbers to the...
Curated Video
How to Write a Number Using Decimal Expansion
In this short math video we will answer a standardized math test question where we demonstrate how to write a number using decimal expansion. We will first understand that the question is a multiple select problem and that we need to...
Krista King Math
Place Value
Explore the meaning of place value by writing numbers in expanded form. The video instructor explains place value on both sides of the decimal. She then shows an example of expanded form to the thousands place.
Khan Academy
Decimal Place Value, Decimals, Pre-Algebra
Having a good number sense is key to understanding place value. This video clearly explains the place values that comprise a decimal number. It is a very straightforward presentation and would be appropriate for grades three, four, or...
Socratica
Using Scientific Notation
Scientists and engineers in every field use scientific notation. The Socratica video explains what scientific notation is and why people use it. Then, it offers examples of how to convert a number into and out of scientific notation....
Khan Academy
Khan Academy: More Advanced Subtraction Strategies With Hundredths
Sal uses place value and numbers in expanded form to subtract decimal to hundredths, such as 8.38-4.54.
Homeschool Math
Homeschool Math: Three Decimal Digits Thousandths
A 5th grade complete lesson with video instruction and exercises about decimals with three decimal digits. Includes writing them as fractions, place value & expanded form, and decimals on a number line.
Khan Academy
Khan Academy: More Advanced Subtraction Strategies With Hundredths
Sal uses place value and numbers in expanded form to subtract decimal to hundredths, such as 8.38-4.54. [5:01]