Which term is used to imply a decimal number written using these digits: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9?

The system had the concept of zero, unknown to the Greeks and Romans.

Arab traders brought this knowledge from ancient India.

Fry, 0,was Indian but were not the rest Arabic? And I thought the explanation may have included the Fibonacci sequence too.