An abacus can be used to add, subtract, multiply, or divide. From LearnThat.org.
The columns of these pillared porches have sixteen flutings, a plain abacus, and no plinth. From Wordnik.com. [Pharaohs, Fellahs and Explorers] Reference
Thus the fourth column from the west is his, and perhaps the fifth up to the abacus, which is convex and of limestone. From Wordnik.com. [Bell's Cathedrals: The Cathedral Church of Ripon A Short History of the Church and a Description of Its Fabric] Reference
For a lesson in arithmetic, Brad assembled a kind of abacus out of colored blocks, astounding his teacher. From Wordnik.com. [Talented and Gifted: In one year, she taught her students to see the wonders of their talents -- then and forever] Reference
Investors lost a billion dollars in "abacus" in just nine months. From Wordnik.com. [Breaking News: CBS News] Reference
Nerdly joy in the knowledge that the plural of "abacus" is "abacuses". From Wordnik.com. [Schmutzie.com] Reference
If he's an intellectual, wouldn't he have the answers stored in his "abacus" of a brain?. From Wordnik.com. [Recent Activity] Reference
So folks, pull out the abacus and your calculator. From Wordnik.com. [CNN Transcript Mar 9, 2008] Reference
The abacus is heavy, and is carved with sunk diapers. From Wordnik.com. [Scottish Cathedrals and Abbeys] Reference
I have been working hard with my abacus and all my papers here. From Wordnik.com. [CNN Transcript Dec 12, 2007] Reference
That abacus, by the way, can take you up to at least eight digits. From Wordnik.com. [CNN Transcript Mar 6, 2004] Reference
The man -- did you do that on an abacus or did -- what did you do?. From Wordnik.com. [CNN Transcript Feb 7, 2006] Reference
HAMMER: I don't think anybody used an abacus when we were kids, Don. From Wordnik.com. [CNN Transcript Mar 17, 2008] Reference
The height of the abacus is one seventh of the height of the capital. From Wordnik.com. [The Ten Books on Architecture] Reference
I ` m crunching the numbers up my abacus and breaking it down for you. From Wordnik.com. [CNN Transcript Mar 17, 2008] Reference
The abacus has a width equivalent to the thickness of the bottom of a column. From Wordnik.com. [The Ten Books on Architecture] Reference
KAVINOKY: Well, I ` m glad you broke down the numbers because I forgot my abacus. From Wordnik.com. [CNN Transcript Mar 17, 2008] Reference
The flowers on the four sides are to be made as large as the height of the abacus. From Wordnik.com. [The Ten Books on Architecture] Reference
Chinese aren't bad at math: they invented the abacus as early as the third century. From Wordnik.com. [Why China Cooks The Books] Reference
One wonders what counting device District officials are using -- an abacus, perhaps?. From Wordnik.com. [D.C.'s poor primary-night performance] Reference
The caps are simple and of an ordinary transitional form, each with a square abacus. From Wordnik.com. [Scottish Cathedrals and Abbeys] Reference
Sure, but it's a rivalry that'll be contested primarily on an abacus, not in a sports arena. From Wordnik.com. [A Viewer’s Guide to Beijing] Reference
I know you ` ve got that SHOWBIZ TONIGHT abacus I sent you over there at the "Extra" studios. From Wordnik.com. [CNN Transcript Oct 7, 2009] Reference
There is a transition attached shaft with carved cap and square abacus in the low pointed recess. From Wordnik.com. [Scottish Cathedrals and Abbeys] Reference
They are united only at the base and by the abacus above the capitals, which are beautifully carved. From Wordnik.com. [Bell's Cathedrals: Chichester (1901) A Short History & Description Of Its Fabric With An Account Of The Diocese And See] Reference
The projection of the echinus beyond the fillet of the abacus should be equal to the size of the eye. From Wordnik.com. [The Ten Books on Architecture] Reference
It's true I call myself a merchant; but I've never in point of fact handled the scales or the abacus. From Wordnik.com. [Hung Lou Meng, Book II Or, the Dream of the Red Chamber, a Chinese Novel in Two Books] Reference
Let the height of the capital, including its abacus, be equivalent to the thickness of the base of a column. From Wordnik.com. [The Ten Books on Architecture] Reference
In the windows of the second stage the abacus of the capitals is continued as a string from window to window. From Wordnik.com. [Bell's Cathedrals: The Cathedral Church of Ripon A Short History of the Church and a Description of Its Fabric] Reference
All you're good for is to work the small abacus, to divide a catty and to fraction an ounce, so finicking are you!. From Wordnik.com. [Hung Lou Meng, Book II Or, the Dream of the Red Chamber, a Chinese Novel in Two Books] Reference
He learned to read, to write with a stylus on wax tablets, and to cipher by means of the reckoning board, or abacus. From Wordnik.com. [Early European History] Reference
The faces of the volutes must recede from the edge of the abacus inwards by one and a half eighteenths of that same amount. From Wordnik.com. [The Ten Books on Architecture] Reference
The faces should curve inwards, by one ninth of the breadth of the face, from the outside edge of the corners of the abacus. From Wordnik.com. [The Ten Books on Architecture] Reference
In 1996, another team of IBM physicists in Zurich built a nanoscale abacus, with each "bead" consisting of a carbon molecule. From Wordnik.com. [Get Ready For Nanotechnology] Reference
Omitting the height of the abacus, let the rest be divided into three parts, of which one should be given to the lowest leaf. From Wordnik.com. [The Ten Books on Architecture] Reference
The capitals are less advanced in style, as the part just above the bell is not moulded and the abacus retains the square edge. From Wordnik.com. [Bell's Cathedrals: The Cathedral Church of Ripon A Short History of the Church and a Description of Its Fabric] Reference
The abacus of the Roman and Chinese extended the scope of simple mathematical operations as it employed more symbolic elements. From Wordnik.com. [The Doctrine of Evolution Its Basis and Its Scope] Reference
On either side there are five shafts, the outermost order having two, which are placed on the front of the jamb and share one abacus. From Wordnik.com. [Bell's Cathedrals: The Cathedral Church of Ripon A Short History of the Church and a Description of Its Fabric] Reference
The arch is distinctly horse-shoe-shaped, and on the nave side has a square label merging into the abacus, while the chancel side has none. From Wordnik.com. [Bell's Cathedrals: The Abbey Church of Tewkesbury with some Account of the Priory Church of Deerhurst Gloucestershire] Reference
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