The Babylonians used base 60 (hexadecimal) instead of our base 10 (decimal) or base 2 (binary). The Romans used a complicated scheme using I, V, X, C, D and M. This severely impeded their ability to do arithmetical calculations. Arabic scholars invented the idea and usage of zero, leading finally to what became our modern system.
Probably in Arabia in ancient times. The Arabs were the first to introduce the concept of 'zero'.
they checked it by checking the position of the planets.
Total of the numbers divided by the numbers of times the figures appear
the numbers are 17 times 2.
7 times 11
I think maybe an abacus
During the Ancient Greek times
No, because if they were ancient, we would be too. Get it? Like ancient people lived in ancient times, and it isn't ancient times anymore
Fo accounting, keeping track of the numbers of crops or animals, trading/bartering, etc.
Many people believed Aristotle in ancient times.
Many people believed Aristotle in ancient times.
the ancient maya
Depends who and when
Yes
ghyfygu
rooftops
answer