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.
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They used the abacus
Abacus is a global computer reservation system used by travel agencies only in Asia.
If you mean electronically, then it would still be called a calculator. But, before that, people used the abacus, which had lots of sliding thingies and such.
yes but not many people use it
Before electronics were invented, Mathematicians used abacus's.
There was evidence of the abacus going back as early as 2700 B.C. And it is still commonly used in certain countries and places like Japan, China, Russia, and the Middle East.
The Abacus.
An abacus is an ancient Chinese calculator that is still in use today.
The Abacus.
The Abacus.
I think Chinese do...
Yes abacus still in used today, specially for visual impaired students. Eventhough the talking calculator did help for visual impaired students at Braille schools across the nation, but talking calculator do not let students understand the important of number placement value. I enclosed some websites talk about the benefits of using abacus in Braille schools: http://www.hadley-school.org/resources_list_detail.asp?resource=abacus http://www.hadley-school.org/resources_list_detail.asp?resource=abacus
Florida
An abacus is a calculating tool used primarily in parts of Asia for arithmetic. The abacus was in use centuries before the written modern numeral system and is still used by merchants, traders and clerks in Asia and Africa.
Yes it is. they teach it in school. It is primarily used to teach little kids in kitnergarden and elementary school to add and subtract.