Answer
102
Work Step by Step
Step 1: Add the digits in one’s column
Sum of the ones column 3+9= 12. Write 2 ones in the ones column and write 1 tens in the tens column.
1
7 3
+2 9
____
2
Step 2: Add the digits in the tens column, including the regrouped 1.
Sum of the tens column 1+7+2=10. Write 0 tens in the tens column and 1 hundred in the hundred column.
1 1
7 3
+2 9
____
1 0 2
