Let's get this math done. We have 2204 and 7140 and we're going to add them all together.

Step 1: We'll start by adding the digits 4 & 0 in column 1 and get 4.

Step 2: We'll start by adding the digits 0 & 4 in column 2 and get 4.

Step 3: We'll start by adding the digits 2 & 1 in column 3 and get 3.

Step 4: We'll start by adding the digits 2 & 7 in column 4 and get 9.

So, 2204 + 7140 = 9344.

