Ready to do some math? We're starting with 5001 and 3135 and adding them up.

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

Step 2: We'll start by adding the digits 0 & 3 in column 2 and get 3.

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

Step 4: We'll start by adding the digits 5 & 3 in column 4 and get 8.

So, 5001 + 3135 = 8136.

