Complex sentence: The "Suàn shù shū" (算數書) or "writings on reckoning" is the earliest known Chinese mathematical text, which dates between 202 BC and 186 BC. Liu et al.
Split into simpler sentences: The "Suàn shù shū" (算數書) or "Writings on Reckoning" is the earliest known Chinese mathematical text. It was written sometime between 202 BC and 186 BC. Liu et al.