Question

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

$$$\mathrm{DCXCVII}$

Answer 1

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

$\mathrm{I}=,V=5,\mathrm{X}=10,\mathrm{L}=50,\mathrm{C}=100,\mathrm{D}=500$

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

$\mathrm{DCXCVII}$ = $500+100+(100-10)+5+1+1$

= $697$.

Hence, Hindu-Arabic numeral for $\mathrm{DCXCVII}$ is $697$.