The "sum" is the result of adding something together, and "digits" refers to the individual
numbers that make up 7809.
7809 has 4 digits. The digits in 7809 are 7, 8, 0, and 9.
When you are asking for the sum of the digits of 7809, you are basically asking what is
7 plus 8 plus 0 plus 9?
Therefore, the sum of the digits in 7809 is as follows:
7 + 8 + 0 + 9 = 24
Sum of digits in 7810
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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