The "sum" is the result of adding something together, and "digits" refers to the individual
numbers that make up 7731.
7731 has 4 digits. The digits in 7731 are 7, 7, 3, and 1.
When you are asking for the sum of the digits of 7731, you are basically asking what is
7 plus 7 plus 3 plus 1?
Therefore, the sum of the digits in 7731 is as follows:
7 + 7 + 3 + 1 = 18
Sum of digits in 7732
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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