# Multiplying 10s | Math | 4th grade | Khan Academy

Multiplying 10s | Math | 4th grade | Khan Academy

Lindsay multiplies multiples of 10 by other multiples of 10, such as 30×50.

Practice this yourself on Khan Academy right now: https://www.khanacademy.org/math/cc-fourth-grade-math/cc-4th-mult-div-topic/cc-4th-mult-10s-100s-1000s/e/multiplying-tens

Watch the next lesson: https://www.khanacademy.org/math/cc-fourth-grade-math/cc-4th-mult-div-topic/cc-4th-area-models/v/more-ways-to-think-about-multiplying

Missed the previous lesson? https://www.khanacademy.org/math/cc-fourth-grade-math/cc-4th-place-value-rounding/cc-4th-10-relates-to-place-value/v/understanding-place-value-1-exercise

4th grade math 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.)

Want a virtual coach for 4th grade? Unlock the 4th grade mission on Khan Academy here: https://www.khanacademy.org/mission/cc-fourth-grade-math?utm_source=YT&utm_medium=Desc&utm_campaign=4thgrade

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Nice I’m in a school and I’m in 4th grade

This helped me soo much thank you I’m grade 4 now thank you for the video it helped me soo much😘

I’m starting 4th grade on Wednesday it’s me first day at 4th grade on Wednesday

My teacher is making me and my class watch this even tho i am in 5th grade. Lol

That had helped me a lot 👌👌😝😝

Im trying to get smart

The American School system makes me feel so smart, most of these subjects I’ve learned it two grades before.

wow that make me happy put a like if u like what she doing

Oh I get it

im in 5th grade my theacher told me to whatch this for shcool -_-

I still don’t get it, for some reason I cannot understand any math. Right now we are learning Input’s and Outputs and my teacher recommended you to me. I’ve practiced and watched your videos over and over, nothing seems to be working… You’ve helped me a bit and I really appreciate that though.

what about 30 times 7.

so basically we have to break up the 4,7 and turn the ten place into a ten then just multiple the numbers but, first start with 4 times 7 which is 28 then with the two zeros in the two tens you add that to 28 and it becomes 2800. since i had to watch this i already knew it. but, not using tens. thank you for your help aganin

It helped me a lot for fourth grade

Too ezzz

Really!!!! That’s thousands steps to get the results you making my kids confused!!!! All we need put the two zeros out and 4 times 7 which 28 it’s just two steps

This helped me so much thankyou

Why did I learn this in 1st grade?

the easiest way to do it is by taking the tens and multiplying it for example the answer was 45 so we add the 2 zeros our answer would be 4500… this only works for numbers that end with zeros…

I’m in 5th grade I dont even know 7×4 I need help I have to count but nothing is helping

280

An easier way is 7×4=28 and then you just add the to zeros next to the other numbers

This helps me so much

Im on march break from grade 3

Im in 1st grade and my sister wants me to learn early

THIS HELPED ME SO MUCH IM STARTING FOURTH GRADE IN 5 MONTHS AND IM GOING TO BE SO AHED

Awesome I am getting smarter

Good

I know this school I don’t go there

THANKS I NEED THIS I GOT A BAD GRADE

this is really helping keep it up pls

this helped me 100,00 more times then i thought it would my name is samyah bowden i am in 4th grade andthis helped me alot with my math

Thisis nice for 4th grade thanks guys and im learing pretty much im greatful this video help me with math and 4th grade

2EZ4ME

stupid

Helped me so much!

Hi I’m Dave

want this like first grade

im in 5th grade and l need hlep whit math

i like this so much

this helped me so MUCH im getting ready for 4th grade and this helped a lot thx again khan academy

Thx

I’m in 3rd grade and I’m doing those kinds of multiplying but thx for your help it’s easier for me now

Anf this hlep me thx so much

Great video! and It is cool that you can do on Khan Academy.

It helped me so much I’m going to fourth grade this fall

shut up plz ok

it helps me

I am Ma’Caria I am On my sisters iPad because mine is cracked and I don’t have an account on YouTube I’m making a study guide for me and my sister I’m going into fourth grade and my sister is going into second grade this is helping me so much thank you so much khan academy

Me and the boys in corona season when our teachers are making year 5s doing this lol BTW I skipped grade 4