This video shows you how to find a digit sum of a number and a reduced digit sum of a number. Calculator: https://www.mathcelebrity.com/digit-sum.php

1. Digit Sum Definition
● Add up all the digits in a number
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2. Digit Sum Example
586
Digit Sum = 5 + 8 + 6
Digit Sum = 19
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3. Reduced Digit Sum Definition
1. Take the Digit Sum
2. If it’s greater than 10, perform another digit sum on the
digit sum
3. Continue until the digit sum is less than 10
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4. Reduced Digit Sum Example
586 - Digit Sum = 5 + 8 + 6
Digit Sum = 19
Since the digit sum > 9, take the digit sum of 19.
1 + 9 = 10
Since the digit sum > 9, take the digit sum of 10.
1 + 0 = 1
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5. Digit Sum Demo
Go to mathcelebrity.com
In the search box, type any of the following:
Digit Sum for 297
Digit sum
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