Задание
Какому числу равно римское число \(\displaystyle {\rm MXXVII}\)?
Решение
Определение
\(\displaystyle {\rm M}=1000,\) \(\displaystyle {\rm D}=500,\) \(\displaystyle {\rm C}=100,\) \(\displaystyle {\rm L}=50,\) \(\displaystyle {\rm X}=10.\)
| число | тысячи | сотни | десятки | единицы | ||||||
| \(\displaystyle {\rm MXXVII}\) | \(\displaystyle =\) | \(\displaystyle {\rm M}\) | \(\displaystyle +\) | \(\displaystyle {\rm }\) | \(\displaystyle +\) | \(\displaystyle {\rm XX}\) | \(\displaystyle +\) | \(\displaystyle {\rm VII}\) | ||
| \(\displaystyle 1000\) | \(\displaystyle +\) | \(\displaystyle 0 \) | \(\displaystyle +\) | \(\displaystyle 20\) | \(\displaystyle +\) | \(\displaystyle 7\) | \(\displaystyle =\) | \(\displaystyle 1027\) |
Ответ: \(\displaystyle 1027\).