No problem, let's work through this together. We're starting with 702 and 270 and adding them all up.

Step 1: We'll start by adding the digits 2 & 0 in column 1 and get 2.

Step 2: We'll start by adding the digits 0 & 7 in column 2 and get 7.

Step 3: We'll start by adding the digits 7 & 2 in column 3 and get 9.

So, 702 + 270 = 972.

