No problem, let's work through this together. We're starting with 225 and 372 and adding them all up.

Step 1: We'll start by adding the digits 5 & 2 in column 1 and get 7.

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

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

So, 225 + 372 = 597.

