Answer
The base ten numeral is\[223\].
Work Step by Step
To convert any numeral to base ten, we multiply each digit of the given number with increasing powers of base value from the right side, according to places.
\[\begin{align}
& {{267}_{\text{nine}}}\,=2\times {{9}^{2}}+\,6\times {{9}^{1}}\,+7\times {{9}^{0}} \\
& =2\times 81\,+6\times 9\,+\,7\times 1 \\
& =162\,+54\,+7 \\
& =223
\end{align}\]
Hence, the base ten numeral is\[223\].
