Let's break this down. We're going to add 105 and 611 together.

Step 1: We'll start by adding the digits 5 & 1 in column 1 and get 6.

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

Step 3: We'll start by adding the digits 1 & 6 in column 3 and get 7.

So, 105 + 611 = 716.

