How to math like an asian

Mother of God... Why couldn't they have taught me this when I was in elementary school?!

Idk bout you guys but I just scrolled past this....

GUYS WTF I CANT OMG

So I draw some lines and draw some circles annndddd.... I still don't get it b

I would of past maths if I had this......

This is cool but using the lattice would be more efficient in my opinion

how would you do 20 x 30?

Help my grandkids, thanks. rr.

This is amazing. I'm going to try it with my 5th grade math stations.

I tried this. Great way to use your mind, hands and it's artsy!

Or.... Just do 15x20 is 300. 15x3 is 45....345

Kids shouldn't be using calculators anyway. It's basic mental arithmetic!

Wow

Good and easy for 2 digit computations. How do the 3 and above computations work for the order of the intersections?

345