Convert Calendar Date Dec-11, 2019 In Roman Numerals, How To Write

Date December 11th, 2019 Converted to Roman Numerals

Convert and write the date December 11th, 2019, i.e. birthday, in Roman numerals

The Roman numerals we are going to use to make the conversion:

I = 1; X = 10; M = 1000;

» Roman numerals: basic reading rules

How do we proceed?

Convert, one by one, the numbers that represent the month, the day and the year, to Roman numerals. If the case, break down each number into place value subgroups.

Month, December:

December is the twelfth (12th) month of the year.

Replace the name of the month with the corresponding number of the month of the year: 12.

I = 1; X = 10;

12 = 10 + 2;

10 = X;

2 = 1 + 1 = I + I = II;

12 = 10 + 2 = X + II = XII;

» 12 = XII

Day, 11:

I = 1; X = 10;

11 = 10 + 1;

10 = X;

1 = I;

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

» 11 = XI

Year, 2019:

I = 1; X = 10; M = 1000;

2019 = 2,000 + 10 + 9;

2,000 = 1,000 + 1,000 = M + M = MM;

10 = X;

9 = 10 - 1 = X - I = IX;

2019 = 2,000 + 10 + 9 = MM + X + IX = MMXIX;

» 2019 = MMXIX

How to write the calendar date in Roman numerals: December 11th, 2019 = XII - XI - MMXIX Month Day, Year

» Convert the calendar date: December 11th, 2014 - how to write the date in Roman numerals?

» The additive notation in the writing of the Roman numerals

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Convert calendar dates, write them in Roman numerals

Day (integer number): Month (integer number): 1 = January2 = February3 = March4 = April5 = May6 = June7 = July8 = August9 = September10 = October11 = November12 = DecemberYear (integer number): Date format: Day-Month-YearYear-Month-DayMonth-Day, Year

The set of Roman numerals used for writing calendar dates

• I = 1 (one); V = 5 (five);

• X = 10 (ten); L = 50 (fifty);

• C = 100 (one hundred);

• D = 500 (five hundred);

• M = 1,000 (one thousand);

• • For writing dates in the future:

  • (*) V = 5,000 or |V| = 5,000 (five thousand); see below why we prefer: (V) = 5,000.

  • (*) X = 10,000 or |X| = 10,000 (ten thousand); see below why we prefer: (X) = 10,000.

Note 1: (*) These numbers were written either with an overline (a bar above the number) or between two vertical lines (two vertical bars).

Note 2 (*) Instead we prefer to write these larger numerals between brackets "()" since: 1) when compared to the overline - it is more accessible to computer users; 2) when compared to the vertical line - it avoids any confusion between the vertical line "|" and the Roman numeral "I" (one).

• So, (V) = 5,000 and (X) = 10,000.

Note 3: (*) Romans were not using right from the beginning numbers larger than 3,999, so they initially had no representation for numbers like:

• 5,000 = (V), 10,000 = (X), 50,000 = (L), 100,000 = (C), 500,000 = (D), or 1,000,000 = (M).

These larger numerals were added later to the system and various different notations were used for them, not necessarily the ones above.

For a long time, the maximum number that could be written using Roman numerals was:

• MMMCMXCIX = 3,999. .

The reading rules of the Roman numerals, summary:

I. The set of the basic symbols of the Roman numerals

II. The rule of the repetition of the Roman numerals

III. The groups of the Roman numerals written in subtractive notation

IV. The additive notation of the Roman numerals

How to convert the Hindu-Arabic numbers to Roman numerals: breaking down the numbers into place value subgroups

Examples of converting Hindu-Arabic numbers to Roman numerals

Two lists of the first Roman numerals (in ascending order):

The list of the first 100 Roman numerals: the Roman numerals from 1 to 100

The list of the first 1,000 Roman numerals: the Roman numerals from 1 to 1,000

Mathematical operations with Roman numerals:

I. Addition. Learn by an example how to add the Roman numerals the right way, like the Romans were calculating, without the use of the Hindu-Arabic numbers. Steps, explanations

II. Subtraction. Learn by an example how to subtract the Roman numerals the right way, like the Romans were calculating, without the use of the Hindu-Arabic numbers. Steps, explanations

III. Addition and subtraction. Learn by an example how to add and subtract the Roman numerals the right way, like the Romans were calculating, without the use of the Hindu-Arabic numbers. Steps, explanations