The Invention of Zero. Joanne, Kristan & Dayle Primary/Junior Math Tuesday January 19th, 2010. Why were numbers needed? To count sheep To keep track of property To keep track of time. These tasks had no use for a zero!!. Egyptians -Had no need for a zero
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These tasks had no use for a zero!!
-Had no need for a zero
-Had a unique symbol to represent each number
-Never progressed beyond measuring and counting
-Only practical uses of mathematics
-Had a sexagesimal system, which meant that 11, 601, 36 001, etc all looked the same
-By 300 BC were using a marker for an ‘empty space’ (a place holder)
-’Zero was a digit, not a number’ (p. 15)