Aside from the standard multiplication algorithm we know, and the **Line Multiplication** which I already discussed, there is another method that we can use to multiply. This is called lattice multiplication. We can do this in multiplying 2-digit by 2-digit numbers but it can be expanded to numbers with higher number of digits. The steps of are as follows.

**Step 1:** Create 2 by 2 grid and place the numbers you want to multiply at the top and at the right side as shown below. In this case, we want to multiply 83 by 42.

**Step 2:** Draw diagonals in each grid. This forms two triangles. These triangles will contain the digits of the product. As shown below, the yellow square will contain the product of 3 and 2. Continue reading