Spark addition is an easy way to get the sum of numbers by just looking at them.
There are two concepts to keep in mind: End Numbers and Carry & Non-Carry Numbers. To use this method, one must start the calculations from the left and move toward the right.
If there is a carry number on the right, add 1 to the left. If there is a non-carry number on the right, then copy as it is. Finally, repeat the steps until you reach the rightmost number.