The "sum" is the result of adding something together, and "digits" refers to the individual
numbers that make up 438.
438 has 3 digits. The digits in 438 are 4, 3, and 8.
When you are asking for the sum of the digits of 438, you are basically asking what is
4 plus 3 plus 8?
Therefore, the sum of the digits in 438 is as follows:
4 + 3 + 8 = 15
Sum of digits in 439
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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