The "sum" is the result of adding something together, and "digits" refers to the individual
numbers that make up 3439.
3439 has 4 digits. The digits in 3439 are 3, 4, 3, and 9.
When you are asking for the sum of the digits of 3439, you are basically asking what is
3 plus 4 plus 3 plus 9?
Therefore, the sum of the digits in 3439 is as follows:
3 + 4 + 3 + 9 = 19
Sum of digits in 3440
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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