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Answer
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Digit Sum = 2
Reduced Digit Sum = 2

↓Steps Explained:↓

Calculate the digit sum of 101

Calculate the reduced digit sum of 101

Digit Sum

Add up 3 digits of 101:

Digit Sum → 1 + 0 + 1 = 2

Since our digit sum ≤ 9:
we have our reduced digit sum

Final Answer

Digit Sum = 2
Reduced Digit Sum = 2
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