Lesson: Multiplying by Doubling and Halving

Rate this video: 
5

Comment on Multiplying by Doubling and Halving

I'm really enjoying these videos. Thanks!
gmat-admin's picture

Glad to hear you're enjoying them!

Great techniques. Thank you very much.
gmat-admin's picture

Thanks for that!

After this video, I had an "AHA!" moment lol, Thanks GMATPrep!
gmat-admin's picture

Good to hear!

Thank you

very cool, thanks

Very good and simple technique..
I liked it very much and it is very easy..
Thank you very much for explaning this technique..

nice .. i am gaining confidence step by step...

are the se all videos enough for decent scores as i dont want to waste my time on random resources ?
gmat-admin's picture

Yes, our course covers every concept and strategy necessary to beat the GMAT.

This is a great strategy!
Thanks!
Rashad046's picture

Although it has been more than 20 year ago, since I last sit math exams I do enjoy learning it againg with these videos
gmat-admin's picture

Glad to hear it!

Just to confirm this only works on products correct?
gmat-admin's picture

That's correct.

Euro's picture

good video

Alternatively, prime factorization for the numbers under the root =)
gmat-admin's picture

Yes, we could! That concept is covered later in the course, so I didn't discuss in this video.

These videos are such helpful! Wonderful job team. Kudos

Very easy and interesting techniques to learn

Add a comment

Ask on Beat The GMAT

If you have any questions, ask them on the Beat The GMAT discussion forums. The average response time is typically less than 30 minutes.

Change Playback Speed

You have the option of watching our videos at various speeds (25% faster, 50% faster, etc). To change the playback speed, click the settings icon on the right side of the video status bar.

Have a question about this video?

Post your question in the Comment section below, and we’ll answer it as fast as humanly possible.