Correct
尾数
/ wěishù /
Strokes
Definition
remainder (after rounding a number)/decimal part (of number after the decimal point)/mantissa (i.e. fractional part of common logarithm in math.)/small change/balance (of an account)
Example
As a Noun
number after the decimal point
As a Noun
odd amount in addition to the round number (usu of a credit balance)
As a Noun
last number (of a multidigital figure)