Let's solve this addition problem. We have 5120 and 233, and we need to add them together.

Step 1: We'll start by adding the digits 0 & 3 in column 1 and get 3.

Step 2: We'll start by adding the digits 2 & 3 in column 2 and get 5.

Step 3: We'll start by adding the digits 1 & 2 in column 3 and get 3.

Step 4: We'll start by adding the digits 5 & 0 in column 4 and get 5.

So, 5120 + 233 = 5353.

