1000 (which is a thousand).
It is simply: M that equals 1000
Hindu-arabic numerals start from ones, tens ,hundreds, thousand, ten thousand ,lakh, ten lakh,crores , ten crores etc....
1500
You mean Roman numerals? X
4,000.
There are 100 hundreds in ten thousand.
Ten thousands
Ten hundreds is the same as 10 x 100, which equates to 1,000
Ten
X = 10
It is used by Romans, because they use Roman numerals. In Roman Numerals, x represents ten (10)
Ten Hundred is basically one thousand. So, that means that there are 5 ten hundreds in five thousand.