No problem, let's work through this together. We're starting with 507 and 92 and adding them all up.

Step 1: We'll start by adding the digits 7 & 2 in column 1 and get 9.

Step 2: We'll start by adding the digits 0 & 9 in column 2 and get 9.

Step 3: We'll start by adding the digits 5 & 0 in column 3 and get 5.

So, 507 + 92 = 599.

