4 ms·
Here's another way, called Mayan Multiplication: http://www.youtube.com/watch?v=wA0VLbPGorI http://www.youtube.com/watch?v=wA0VLbPGorI
by pcestrada 16y ago
Here's another way, called Mayan Multiplication:
http://www.youtube.com/watch?v=wA0VLbPGorI http://www.youtube.com/watch?v=wA0VLbPGorI