Step 1Â – Add the numbers in the ONES Column.If the sum of ONES is more than 9 , then we regroup the 10 ONES as 1 TEN and add it to the TENS.
In other words ,if the sum of ONES column is forming 2 digit number then write the ONES in the ONES column and carry over the TEN to the TENS column
Step 2Â –Â Add the carried over TEN to the digit already in the TENS column and write the sum in the TENS column.