Question

Write each of the following as a Hindu-Arabic numeral:

$\mathrm{CLXVI}$

Answer 1

To convert the Roman numeral into Hindu-Arabic numeral we should know about values of Fundamental symbols as

$\mathrm{I}=1,\mathrm{V}=5,\mathrm{X}=10,\mathrm{L}=50,\mathrm{C}=100,$

Putting values of given Roman numerals and adding them, we get

$\mathrm{CLXVI}$ = $100+50+10+5+1$

= $166$.

Hence, Hindu-Arabic numeral for $\mathrm{CLXVI}$ is $166$.