Abacus.ch - Abacus - Wikipedia

wikipedia.org

https://en.wikipedia.org/wiki/Abacus

WEBAn abacus (pl.: abaci or abacuses), also called a counting frame, is a hand-operated calculating tool which was used from ancient times in the ancient Near East, Europe, China, and Russia, until the adoption of the Hindu-Arabic numeral system. An abacus consists of a two-dimensional array of slidable beads (or similar objects). In their ...

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wikihow.com

https://www.wikihow.com/Use-an-Abacus

WEBLast Updated: July 26, 2023 Fact Checked. The abacus (the suanpan is the most useful variety) is a deceptively simple calculating tool still used all over the world. It's a useful learning device for the visually impaired, as well as for anyone who wants to learn the roots of the modern calculator. Views: 2.5M

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britannica.com

https://www.britannica.com/technology/abacus-calculating-device

WEBAbacus, calculating device, probably of Babylonian origin, that was long important in commerce. It is the ancestor of the modern calculating machine and computer. The abacus was in universal use in Europe in the Middle Ages, as well as in the Arab world and in Asia.

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historytools.org

https://www.historytools.org/inventions/abacus

WEBNovember 8, 2023. The abacus is one of the oldest calculating devices, used by ancient civilizations globally. This comprehensive guide will explain what an abacus is, how it works, its fascinating history, why it remains popular today, and how learning abacus calculation can improve your math skills!

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encyclopedia.com

https://www.encyclopedia.com/science-and-technology/mathematics/mathematics/abacus

WEBJun 27, 2018 · The abacus, an ancient calculating device, probably originated in Babylon around 2400 B. C. E. as a "counting box." It was the world's first calculator, and contemporary versions are still in use today. An abacus is a wooden or metal rectangular frame with vertical bars containing movable beads.

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cuemath.com

https://www.cuemath.com/learn/abacus-basics/

WEBNov 13, 2020 · Abacus is a simple calculating device that consists of a rectangular wooden frame divided by a horizontal bar into the upper and lower sections. Learn how to solve mathematical operations such as addition, subtraction, multiplication, and counting on the Abacus with the help of this ultimate guide.

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mathsisfun.com

https://www.mathsisfun.com/numbers/abacus.html

WEBThe abacus has been around for thousands of years, and is still used in some parts of the world. Sometimes blind people will use an abacus, because they can feel the numbers easily. Expert abacus users can sometimes do calculations faster than on a calculator, and can even use them to find the square root of whole numbers. ...

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cuemath.com

https://www.cuemath.com/learn/what-is-abacus-a-brief-history-and-explanation-of-this-ancient-math-tool/

WEBWhat is Abacus? An abacus is a manual calculating device used since ancient times. It is a rectangular frame with rows of beads or stones that slide along rods or wires. The Abacus is designed to perform addition, subtraction, multiplication, and division operations.

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investopedia.com

https://www.investopedia.com/terms/a/abacus.asp

WEBJun 17, 2022 · What is an Abacus? An abacus is a calculation tool used by sliding counters along rods or grooves, used to perform mathematical functions. In addition to calculating the basic...

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britannica.com

https://www.britannica.com/dictionary/abacus

WEBABACUS meaning: a device used for counting and calculating by sliding small balls or beads along rods or in grooves

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