Question

what is the value of the number in the thousandths place of 1079.483

Answer 1

9 is at 1's, 7 is at 10's, 0 is at 100's, 1 is at 1000's.

A general formula would be \(f(x) = \lfloor{x / 1000}\rfloor - 10\lfloor{x / 10000}\rfloor\). The \(\lfloor\rfloor\) means to round down. It's read as 'floor'.

Answer 2

\[ f(1079.483) = \lfloor{1.079483}\rfloor - \lfloor{0.1079483}\rfloor = 1 - 0 = 1\]