Answer
143
Work Step by Step
Step 1: Add the digits in one’s column
Sum of the ones column 6+7= 13. Write 3 ones in the ones column and write 1 tens in the tens column.
1
9 6
+4 7
____
3
Step 2: Add the digits in the tens column, including the regrouped 1.
Sum of the tens column 1+9+4=14. Write 4 tens in the tens column and 1 hundred in the hundred column.
1 1
9 6
+4 7
____
1 4 3