Answer
Digit Sum = 19
Reduced Digit Sum = 1
Reduced Digit Sum = 1
↓Steps Explained:↓
Calculate the digit sum of 388
Calculate the reduced digit sum of 388
Add up 3 digits of 388:
Digit Sum → 3 + 8 + 8 = 19
Since our digit sum > 9:
repeat this process to get the reduced digit sum:
Our new number to evaluate is 19
Add up 2 digits of 19:
Digit Sum → 1 + 9 = 10
Since our digit sum > 9:
repeat this process to get the reduced digit sum:
Our new number to evaluate is 10
Add up 2 digits of 10:
Digit Sum → 1 + 0 = 1
Since our digit sum ≤ 9:
we have our reduced digit sum
Final Answer
Digit Sum = 19Reduced Digit Sum = 1
Related Calculators: Factorization | Number Information | 1089 Number Trick