The "sum" is the result of adding something together, and "digits" refers to the individual
numbers that make up 1549.
1549 has 4 digits. The digits in 1549 are 1, 5, 4, and 9.
When you are asking for the sum of the digits of 1549, you are basically asking what is
1 plus 5 plus 4 plus 9?
Therefore, the sum of the digits in 1549 is as follows:
1 + 5 + 4 + 9 = 19
Sum of digits in 1550
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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