An introduction to decimal numbersÂÃÃunderstanding place value to the right of the decimal

Practice this lesson yourself on KhanAcademy.org right now:

Watch the next lesson:

Missed the previous lesson?

Grade 4th on Khan Academy: 4th grade is the time to start really fine-tuning your arithmetic skills. Not only will you be a multi-digit addition and subtraction rockstar, but you’ll extend the multiplication and division that you started in 3rd grade to several digits. You’ll also discover that you sometimes have something left over (called a “remainder”) when you divide. In 3rd grade you learned what a fraction is. Now you’ll start adding, subtracting, multiplying, and comparing them. You’ll also see how they relate to decimals. On other fronts, you’ll learn how to convert between different units (which is super important when comparing the size and speed of robot unicorns in different countries) and continue your journey thinking about various shapes in two dimensions. Some of the foundational concepts of geometry (like lines, rays and angles) also get introduced. As always, we’ll round this out with a healthy dose of applied word problems and explorations of number patterns and properties (including the ideas of factors, multiples and prime numbers). The fun must not stop! (Content was selected for this grade level based on a typical curriculum in the United States.)

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We’ve also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to Khan AcademyÂÃÂªs 4th grade channel:

Subscribe to Khan Academy:

### Like this:

Like Loading...

*Related*

Thank u

😀

Perfect for decimals c;

On your app I can’t find a video about dividing whole numbers by unit fractions (please READ)

that was a little confusing but it really helped, so thank you 🙂 o_o

Numbers

+ Telly Hartman why the f word?

didnt help

do not like it

math antics is more good

khann acadnemy vs math antics

:/

my mum made me look a this 😐

1 year ago

i live in hongkong

helped alot!

Thanks for the info

helped thanku

must watch this video!!!

it did,t help :l`

thanks

lol wth!! your amazing

wow amazing Wii how I definitely did not know that I’m being sarcastic if you didn’t know

go watch some Parkour or something

Very easy to understand…

I like this kind of video….!!

this helped me a lot

Why does the fraction have to be a tenth?

bad audi for me for some reason ? :/

⊂◉‿◉つ

you have made decimals fractions even more harder for me!!! >:3

this is a confusing video LOL

could u talk a little faster….