Answer:
DCCCXLII
Explanation:
To convert 842 to Roman Numerals the conversion involves you to split it up into place values (ones, tens, hundreds, thousands), like this:
Place Value Number Roman Numeral
Conversion 800 + 40 + 2
DCCC + XL + II
Hundreds 800 DCCC
Tens 40 XL
Ones 2 II
How to write 842 in Roman numerals?
To write 842 in Roman numerals correctly you combine the values together. The highest numerals should always precede the lower numerals in order of precedence to give you the correct written combination, like in the table above (top to bottom).