The "sum" is the result of adding something together, and "digits" refers to the individual
numbers that make up 578.
578 has 3 digits. The digits in 578 are 5, 7, and 8.
When you are asking for the sum of the digits of 578, you are basically asking what is
5 plus 7 plus 8?
Therefore, the sum of the digits in 578 is as follows:
5 + 7 + 8 = 20
Sum of digits in 579
See if you can calculate the sum of the digits in the next number on our list before you go here.
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