11 in Roman numerals, how to write?

11 = XI
10 = ? ... 12 = ?
Explanations below.

Roman numerals used to make the conversion:


I = 1; X = 10;

Reading rules

1. Break the number (decompose it) into place value subgroups:

11 = 10 + 1;

2. Convert each subgroup:

10 = X;
1 = I;

3. Wrap up the Roman numeral:

11 = 10 + 1 = X + I = XI;

Final answer:


11 = XI

In Roman numerals, how to write:
10 = ? ... 12 = ?

In Roman numerals online converter

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Roman numerals reading rules, summary: