Question

The Indian mathematician _____ made the use of
numarals 1 to 9 hand number '0' common.
​

Answer 1

Answer:

mathematician Brahmagupta

Answer 2

${\huge{\underline{\mathcal{\pink{Mathematician \: Brahmagupta}}}}}$

In the seventh century, the writings of the mathematician  Brahmagupta are the first known in which zero is considered a number (not just a placeholder digit) and which explain how to operate with zero.