Write $\mathrm{CCCXXIX}$ in Hindu-Arabic numerals.

Write $\mathrm{KXIX}$ in Hindu-Arabic numeral.

Write $\mathrm{KDLXV}$ in Hindu-Arabic numeral.

Write $\mathrm{KKCXXIII}$ in Hindu-Arabic numeral.

Write $\mathrm{KKKDCXL}$ in Hindu-Arabic numeral.

Write $\overline{\mathrm{IV}}\mathrm{CDXLIV}$ in Hindu-Arabic numeral.

Write $\overline{\mathrm{VI}}\mathrm{CKXLIX}$ in Hindu-Arabic numeral.

Write $\overline{\mathrm{IX}}\mathrm{CCCXCl}$ in Hindu-Arabic numeral.

Write the following in Hindu-Arabic numerals:

$\overline{\mathrm{LXX}}\mathrm{IX}$