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Abacus - Wikipedia Abacus-based mental calculation (AMC), which was derived from the abacus, is the act of performing calculations, including addition, subtraction, multiplication, and division, in the mind by manipulating an imagined abacus
How to Use an Abacus (with Pictures) - wikiHow 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
Abacus - New World Encyclopedia An abacus (plurals abacuses or abaci), also called a counting frame, is a calculating tool for performing arithmetical processes, often constructed as a wooden frame with beads sliding on wires
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Abacus | Definition, History, Origin, Facts | Britannica Abacus, 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
What is an Abacus? - Computer Hope Alternatively called the counting frame, an abacus is a mechanical device used to assist a person in performing mathematical calculations and counting Who built the first abacus? Why was the abacus used? Is the abacus still used today? Why should I learn or teach the abacus? How to use the abacus How do I add using the abacus?
Abacus Explained — Everything You Need To Know - History Tools 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!
Abacus - Math is Fun 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
Abacus - Wikiwand An abacus, 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 Rus
Abacus | Encyclopedia. com 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