Step 1 :Add the ones digits: 5+2 = 7.
Step 2 :Add the tens digits, including carryover from the ones digit: 4+8+1 = 13. Write down '3' and carry over '1'.
Step 3 :Add the hundreds digit: 5+3+1 = 9. Write down '9'.
Step 4 :Combine the digits to get the final answer: 929.