Not to worry, we've got 4128 and 3016. Let's get to adding them!

Step 1: We'll start by adding the digits 8 & 6 in column 1 and get 14.
We'll write down the last digit 4 and carry the 1 to the next column.

Step 2: We'll start by adding the digits 2 & 1 in column 2 and get 4.

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

Step 4: We'll start by adding the digits 4 & 3 in column 4 and get 7.

So, 4128 + 3016 = 7144.

