Национальный институт образования | НИО
The ancient Sumerians were the first to develop a counting system, which was positional: that is the placement of a particular symbol relative to others denoted its value. The Sumerian system was handed down to Babylonians in 2000 BC and it was them who first thought of a mark to show that a number was absent from a column; just as 2014 ... ................
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