The Arithmetical Table-book, Or, The Method of Teaching the Combinations of Figures by Sight

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A.S. Barnes, 1848 - 72 páginas
 

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Página 9 - ... one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty thirty forty fifty sixty seventy eighty ninety one hundred two hundred three hundred four hundred five hundred...
Página 42 - Multiplication is the process of taking one number as many times as there are units in another.
Página 68 - The circumference of every circle is supposed to be divided into 360 equal...
Página 68 - PARTICULARS. 12 things make 1 dozen. 12 dozen - - - - - 1 gross. 12 gross, or 144 dozen - 1 great gross ALSO, 20 things make 1 score. 112 pounds 1 quintal of fish. 24 sheets of paper - - 1 quire. 20 quires ----- 1 ream.
Página 27 - Addition is the process of finding the sum of two or more numbers.
Página 4 - ... every step and translate his conceptions into common language, and then retranslate them into the language of arithmetic. For example, when he sees two numbers, as 4 and 8, to be added, he shall not pause and say, 4 and 8 are 12, but shall be so trained as to repeat 12 at once, as is always done by an experienced accountant. So if the difference of these numbers is to be found, he shall at once say 4, and not 4 from 8 leaves 4. If he desires their product, he will say 32 ; if their quotient,...
Página 68 - make 1 minute, marked '. 60 minutes 1 degree, - - °. 30 degrees - - 1 sign, - - s. 12 signs or 360° 1 circle, - - c. cs o 1 = 12 = 360 = 21600 = 1296000 1= 30= 1800= 108000 1= 60= 3600 1= 60 EXAMPLES. 1. Reduce 5s. 29° 25
Página 4 - PRIMARY TABLE-BOOK. The leading feature of the plan of this work is to teach the reading of figures that is, so to train the mind that it shall, by the aid of the eye alone, catch in ¿tantly the idea which any combination of figures is intended to express.
Página 27 - ADOPTION is the operation of finding the sum of two or more numbers. THE SUM of two or more numbers, is a number containing as many units as all the numbers taken together.
Página 58 - Britain. 4 farthings (qr. or far.") make 1 penny, marked d. 12 pence " 1 shilling, " s. 20 shillings " 1 pound, or sovereign, £. 21 shillings

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