Let's solve this addition problem. We have 30 and 2669, and we need to add them together.

Step 1: We'll start by adding the digits 0 & 9 in column 1 and get 9.

Step 2: We'll start by adding the digits 3 & 6 in column 2 and get 9.

Step 3: We'll start by adding the digits 0 & 6 in column 3 and get 6.

Step 4: We'll start by adding the digits 0 & 2 in column 4 and get 2.

So, 30 + 2669 = 2699.

