Originally Posted by Nautigal
Originally Posted by 1frugalmom
What about this epoh?

http://mathworld.wolfram.com/LatticeMethod.html

This reminds me of meringue. Just how much spare time did the person who invented this have, anyway?

But this is multiplication, not division. Is there some ungodly equivalent for division?

Yes, it's multiplication.

Originally Posted by polarbear
I think the lattice multiplication originated in Asia - our school district was parading it around a few years ago as the latest greatest way to teach multiplication. And then, oddly, it disappeared... hmmmmmmmm....

I don't understand these comments though. The lattice method is completely natural, and it is not that different from the standard long multiplication method.