Multiply 12*20

Multiply 0 by 2. Place the result in the next column in the result line. There is one result line for each digit in 20.

Multiply 0 by 1. Place the result in the next column in the result line. There is one result line for each digit in 20.

Multiply 2 by 2. Place the result in the next column in the result line. There is one result line for each digit in 20.

Multiply 2 by 1. Place the result in the next column in the result line. There is one result line for each digit in 20.

Add the numbers in each column. In this case, add 0+0, then place the 0 in the result line.

Add the numbers in each column. In this case, add 0+4, then place the 4 in the result line.

Add the numbers in each column. In this case, add 0+2, then place the 2 in the result line.