Social Studies The Fertile Crescent
Sumer, Page 14

Sumerian Mathematics and Science

The Sumerians studied mathematics and science. They invented the system of counting by tens and parts of ten which we now call the decimal system. The Sumerians used fractions, too. They had a system of weights and measures: pounds, bushels, quarts, feet and yards. They measured distances between villages as well.

Astronomy

The Sumerians invented the system of counting by tens and parts of ten. What do we call this system today?
solution

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