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The abacus was used for counting and helping children in mathematics.
An Abacus can be used as a calculator.
An abacus measures nothing, it is a device used for calculation
The Sumarian abacus appeared as early as 2700 BC, The ancient Egyptians and the Persians also used the abacus
The abacus was invented by the ancient Chinese people and was used to perform mostly mathematical calculations. In Japan, even to this day, the abacus is still used for simple calculations. Many people consider the abacus the first "computer" or at least the first calculator.
Thailand vegetable vendors use abacus, nowadays abacus is gaining popularity in India, US and taught by many schools
a roman abacus was used as a pocket calculator for the romans, helping them calculate roman numerals
They used the abacus
The abacus was originally used to add and subtract. It was much faster than an adding machine. Its weakness was that it did not leave a paper trail.
An abacus is an ancient form of the modern day calculator.
The minimum number of bars on an abacus is nine. An abacus is a calculating tool that was used before the written numeral system came into use. It is still used by merchants and traders in countries in Asia and Africa.
The Sumerian abacus appeared in 2700 BC, a primitive device which was difficult to use. The Persians used the abacus in 600 BC. The Greek abacus dated to the 5th Century BC. The Chinese dated to the 2nd Century BC
abacus was used in 300 B.C by the Babylonians. (The oldest) always the oldest from long time ago.
It was mainly used like a calculator
An abacus was used by just about every head of a family to keep the family finances. If the paterfamilia were not keen on math a slave or a wife would fill in for him. Professional record keeper, tax collectors, censors an even merchants all used the abacus.
addition subtraction multiplication and division
helped with math
It is a device used for counting in ancient times
The abacus is ordinarily attributed to the Chinese, but similar counting devices are known in many different ancient cultures. The system of mathematics used with the Indo-Asian abacus is what set it apart.
An abacus is a deceptively simple calculating tool that has been used since ancient times. It is generally used by the blind to perform multiplication, addition, subtraction and division.