The "sum" is the result of adding something together, and "digits" refers to the individual
numbers that make up 12.|
12 has 2 digits. The digits in 12 are 1 and 2.
When you are asking for the sum of the digits of 12, you are basically asking what is
1 plus 2?
Therefore, the sum of the digits in 12 is as follows:
1 + 2 = 3
Sum of digits in 13
See if you can calculate the sum of the digits in the next number on our list before you go here.