Because they were used in Ancient India. The Arabs learned them from here and spread to the world. That's why in the beginning the Europeans called them Arabic numbers but the arabians itself called them Hindu numbers. So now they are jointly called the Hindu-Arabic numbers.
They are actually called Hindu-Arabic numerals, so named because the system originated in India and was brought to Europe by the Western Arabs.
448 already IS in Hindi-Arabic numerals
192 already IS in Hindi-Arabic numerals.
27 already is written in Hindi-Arabic numerals. (The Hindi-Arabic numerals are 0 1 2 3 4 5 6 7 8 and 9)
84 already is written in Hindi-Arabic numerals. If you want it converted to Roman numerals, it's LXXXIV
They are actually called Hindu-Arabic numerals, so named because the system originated in India and was brought to Europe by the Western Arabs.
448 already IS in Hindi-Arabic numerals
192 already IS in Hindi-Arabic numerals.
27 already is written in Hindi-Arabic numerals. (The Hindi-Arabic numerals are 0 1 2 3 4 5 6 7 8 and 9)
84 already is written in Hindi-Arabic numerals. If you want it converted to Roman numerals, it's LXXXIV
21
945
14
767.
160
26
390