We've got two numbers: 221 and 8. Let's find their sum.

Step 1: We'll start by adding the digits 1 & 8 in column 1 and get 9.

Step 2: We'll start by adding the digits 2 & 0 in column 2 and get 2.

Step 3: We'll start by adding the digits 2 & 0 in column 3 and get 2.

So, 221 + 8 = 229.

