Here we have a nice visual explanation of how a mixed number is really a multiplication of a fraction and a whole number.

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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.

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it was intristing and nice math that was a good larning

Khan A cool!

give me something more harder

thanks

thanks

I understand you more than my teacher

but, where do u get 1/5 it is confusing

Yep your vids always help……even if i have to watch them like 4 times :p

This was totally helpful

HE IS THE BEST LEAVE A LIKE OR SUBSCRIBE TO HIM!!

thanks helping a lot :)(:

This guy is awesome! My teacher 🤓 plays his videos for us in class and for Google Classroom we have to watch his videos

stop saying litarley! it didn’t make a lot of sense.

i still dont undetstand