The Lattice Method of multiplication is part of Everyday Math, a non-traditional approach to mathematics being used by and increasing number of schools across the United States, including at least ...

The use of lattice multiplication to solve for 12 x 34. The multiplicands are set up perpendicularly with one digit written horizontally and the other written vertically down the right side.

Lattice multiplication makes use of the multiplication table in order to multiply huge numbers together quickly and easily. It is thought to have originated in India and moved west into Europe.