Question

Describe how you regroup when you add the sum of 64+ 43

Answer 1

6 4
+
4 3
_____
1 0 7
______


3 + 4 = 7 Put down the 7.

6 + 4 = 10 Put down the 0 first, and then 1 is left. Put down the 1 also to the extreme left.

So the answer is 107