The "sum" is the result of adding something together, and "digits" refers to the individual
numbers that make up 404.
404 has 3 digits. The digits in 404 are 4, 0, and 4.
When you are asking for the sum of the digits of 404, you are basically asking what is
4 plus 0 plus 4?
Therefore, the sum of the digits in 404 is as follows:
4 + 0 + 4 = 8
Sum of digits in 405
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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