Sure thing! We've got 6006 and 252 and we're gonna add them together.

Step 1: We'll start by adding the digits 6 & 2 in column 1 and get 8.

Step 2: We'll start by adding the digits 0 & 5 in column 2 and get 5.

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

Step 4: We'll start by adding the digits 6 & 0 in column 4 and get 6.

So, 6006 + 252 = 6258.

