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We currently use a ten-digit numbering system called decimal. With the digits 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9 we can form any number involving tens, hundreds, thousands, and so on. Even before the appearance of these numbers, other forms were developed and used by ancient civilizations. For example, the Babylonians, peoples of the Mesopotamian region (present-day Iraq), had an incredible mathematical ability.

Due to their accessible mathematical language, they mastered calculations and developed techniques for solving square and bisquare equations. And in the field of Geometry, they had formulas for calculating the areas and volumes of geometric solids.

The Babylonians, as well as the other peoples of the Mesopotamian region, developed techniques for solving calculations involving multiplication and division, square root and cubic root, positional value of numbers, and created symbols responsible for expressing numbers involving units and dozens. The unit was associated with the symbol *"v"*

**. In this way, the numbers were written by the positional organization of these symbols, note:**

*“**3: vvv*

4: vvv v

15: < vvv vv

21: << v

33: <<< vvv

48: <<< < vvv vvv vv

63: <<< <<< vvv

92: <<< <<< <<< vv

4: vvv v

15: < vvv vv

21: << v

33: <<< vvv

48: <<< < vvv vvv vv

63: <<< <<< vvv

92: <<< <<< <<< vv

by Mark Noah

Graduated in Mathematics

Brazil School Team

**Source:** Brazil School - https://brasilescola.uol.com.br/matematica/a-matematica-na-regiao-mesopotamica.htm