Lumos Video Store
This page provides a list of educational videos related to Representing Decimals. You can also use this page to find sample questions, apps, worksheets, lessons , infographics and presentations related to Representing Decimals.
Multiplying Decimals - On a Place Value Chart (5.NBT.B.7)
By Worksheets and Walkthroughs
This video walkthrough lesson with corresponding worksheets investigates what happens on a place value chart as we multiply a decimal by a single digit number in a story problem format. Place value disks are used to represent values on a place value chart.
Multiplying and dividing with significant figures | Decimals | Pre-Algebra | Khan Academy
By Khan Academy
This video takes us through some real world examples of when we should use significant figures when multiplying and dividing. An important note: never consider significant figures until you have reached your FINAL ANSWER. Otherwise, rounding too early will produce more uncertainty about your solution.
Significant figures | Decimals | Pre-Algebra | Khan Academy
By Khan Academy
Introduction to significant figures. All Khan Academy content is available for free at www.khanacademy.org
Writing Tenths and Hundredths with Decimals
By StoneBridgeMath
This video shows how pictures of tenths and hundreds are connected to both fractions and decimals. The instructor displays visual models then shades various areas in the models and she expresses the shaded areas as both a fraction and a decimal.
More on significant figures | Decimals | Pre-Algebra | Khan Academy
By Khan Academy
Understanding the "rules of thumb" for significant figures. All Khan Academy content is available for free at www.khanacademy.org
Adding and Subtracting Decimals
By TeacherTube Math
This video is from the TeacherTube website and the instructor shows how to add and subtract decimals. She shows how to line up the decimal points in the numbers. Instructor appears to be using computer software for demonstration.
Converting Repeating or Terminating Decimals to Fractions
By APUS07
YouTube presents Converting Repeating or Terminating Decimals to Fractions an educational video resource on math.
Converting Decimals to Fractions Chant
By Rebecca Newburn
A teacher starts with a chant to the tune of "We Are the Champions" to show a strategy of converting decimals to fractions. "Say it in decimal write it it fraction form and simplify it." Introduction is about 1 minute long. Teacher explains strategy at the white board.
Writing fractions as repeating decimals
By Khan Academy
Learn how to rewrite 19/27 as a repeating decimal. What's a repeating decimal? THAT is a great question. This video explains.