CↀƆ or ↂ
The symbol ↀ (1000) precedes the M we use today. The surrounding symbols increase it by a factor of 10. Thus CCↀƆƆ would be 100,000 while CCCↀƆƆƆ is 1,000,000.
D is clearly half of the symbol ↀ which explains where the D (500) comes from. It has a similar notation whereby DƆ becomes 5,000 and DƆƆ becomes 50,000, and so on. ↁ is the more concise version of DƆ.
The conventions can also be combined to create odd number such as 105,000, which is CCↀƆƆƆƆ
ↀ can also be written as CIƆ, but not as CD (which is 400).
10000 in Roman numerals would be (X)
The number 10,000 can be written in Roman numerals as [X] or as X with a horizontal bar placed above it (which I can't write with this keyboard).
To write a date in Roman numerals, you would use Roman numerals to represent the day, month, and year. For example, the date May 5, 2022 would be written as V.V.MMXXII.
To write the date in Roman numerals, you would convert the numbers in the date to their Roman numeral equivalents. For example, January 1, 2022 would be written as I.I.MMXXII.
1,000 in Roman numerals is M, the first letter of the Latin word mille (thousand)
You write 1533 in roman numerals like this: MDXXXIII
XMV: X= 10000 M= -1000 (Since it is before the V) V= +5000 14000
To write 19000 in Roman numerals, combine the Roman numerals for 1000 (M) and 9000 (IX). Therefore, 19000 in Roman numerals is written as MXCM.
To write twenty in Roman numerals, you simply write the letter X.
CCCLX is the number 280 in roman numerals. This number is used to represent what roman used to write.
MM is 2000 in Roman numerals.
403 is CDIII in Roman Numerals