Meaning of digit sum | Babel Free

Definitions

1. The sum of all digits.
2. the number obtained when repeatedly applying above described operation until arriving at a single-digit number.

Equivalents

Examples

“The digit sum of 517 is 5 + 1 + 7 = 13.”

“Given an integer X written in base 10 (as is usual), compute the sum of the digits of X: call the result the digit sum of X. If the digit sum is greater than 9, we form the digit sum again. Continue in this way to obtain the iterated digit sum which is at most 9.”

“The digit sum of 517 is 4, since 5 + 1 + 7 = 13 and 1 + 3 = 4.”

“The definition is that to find the digit sum of any number, add all the digits in the number. If number is a one digit no. then stop else add all the digits in this new number. Continue this process till we get one digit number.”

“Every number has a digit sum. The digit sum of 7 is seven. The digit sum of 62 is eight (6 + 2). The digit sum of 728 is also eight (7 + 2 + 8=17, 1 + 7 = 8). The digit sum of a number is found by adding all the digits in the number until a single digit is left.”

CEFR level