Tools Of The Trade: The Abacus, NPR Article
![](https://journals.sagepub.com/cms/10.1177/10323732231174669/asset/images/large/10.1177_10323732231174669-fig5.jpeg)
A 'disguised scheme for compensated emancipation': Accounting for gradual abolition in nineteenth century New Jersey - Evelyn McDowell, Theresa Hammond, 2023
![](https://qph.cf2.quoracdn.net/main-qimg-bc22e1451bd6ececa63fd8410d088975.webp)
When were calculators first invented, and what are some of the brands made in Japan? - Quora
![](https://asb.edu.my/wp-content/uploads/2021/09/20210927-WebinarRecap-ThoughtLeadership.jpg)
Conversations on Central Banking: Bloated Central Bank Balance Sheets [Webinar Recap]
![](https://image.slidesharecdn.com/hedgefundpresentation-111218175727-phpapp02/85/is-china-a-paper-tiger-2-320.jpg?cb=1670170761)
Is China A Paper Tiger?
![](https://cdn.britannica.com/53/122853-050-76D1A71C/Wedge-wood.jpg)
Abacus, Definition, History, Origin, & Facts
![](https://enthu.com/blog/wp-content/uploads/2022/02/who-invented-the-abacus.jpg)
Who Invented the Abacus: A Brief History - EnthuZiastic
![](https://funwithabacus.com/content/uploads/2022/12/f7931e-1.png)
FwA Abacus and Counting Tools History
National Museum of American History
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Back in Stock — The Bead Chest
![](https://abakus-center.eu/assets/upload/articles/nine-bead-abacus-a-powerful-numerical-tool.jpg)
Nine-Bead Abacus: A Powerful Numerical Tool
Make Division Easy for Kids with Montessori Decimal Materials – ShillerLearning
![](https://fastercapital.com/i/Counting-Tool--Unleashing-the-Power-of-the-Abacus-as-a-Counting-Tool--Understanding-the-Abacus-as-a-Counting-Tool.webp)
Counting Tool: Unleashing the Power of the Abacus as a Counting Tool - FasterCapital
the abacus from ancient China; its characteristic is that the counting system used before modern numbers is still used by some businessmen, traders
![](https://m.media-amazon.com/images/I/71cKNkraslL._AC_UF894,1000_QL80_.jpg)
Digital Standard Abacus-20 cm-Professional 13-Column Soroban Calculator (Functional and Educational Tool)
![](https://cdn.britannica.com/58/82558-004-EC7A45D9.jpg)
abacus - Kids, Britannica Kids
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The crew of Apollo 13 used a 5-inch, metal slide rule, model N600-ES made by Pickett as a back up on-board computer. It was a model that was popular among engineers, scientists