Question

_______introducing concept of zero​

Answer 1

Answer:

Teacher information

The ancient Sumerians invented a counting system, but without a zero, 4,000 to 5,000 years ago (Szalay 2013). The Babylonians adopted the sys- tem around 300 A.D. and added a wedge symbol as a placeholder to differentiate numbers such as 10 and 100.

Answer 2

Answer:

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