Ready to do some math? We're starting with 442294956 and 335259928 and adding them up.

Step 1: We'll start by adding the digits 6 & 8 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 5 & 2 in column 2 and get 8.

Step 3: We'll start by adding the digits 9 & 9 in column 3 and get 18.
We'll write down the last digit 8 and carry the 1 to the next column.

Step 4: We'll start by adding the digits 4 & 9 in column 4 and get 14.
We'll write down the last digit 4 and carry the 1 to the next column.

Step 5: We'll start by adding the digits 9 & 5 in column 5 and get 15.
We'll write down the last digit 5 and carry the 1 to the next column.

Step 6: We'll start by adding the digits 2 & 2 in column 6 and get 5.

Step 7: We'll start by adding the digits 2 & 5 in column 7 and get 7.

Step 8: We'll start by adding the digits 4 & 3 in column 8 and get 7.

Step 9: We'll start by adding the digits 4 & 3 in column 9 and get 7.

So, 442294956 + 335259928 = 777554884.

