After watching a video on Khan Academy on Lattice Multiplication, I assumed that it was the "new way" of doing multiplication by hand.
I certainly would use lattice multiplication in preference to traditional long multiplication methods if I ever had to multiply large numbers by hand. I wouldn't be able to say which method is better for a 7 year old learning the concepts though.
I certainly would use lattice multiplication in preference to traditional long multiplication methods if I ever had to multiply large numbers by hand. I wouldn't be able to say which method is better for a 7 year old learning the concepts though.