The Columbian Calculator: Being a Practical and Concise System of Decimal Arithmetic ...Kay & Troutman, 1846 - 264 σελίδες |
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Σελίδα 4
... rules and actual calculation , merely by the effort or operation of the mind , without the use of figures , is unquestionably absurd and inconsistent in the extreme ; and , strange it may appear , some authors and teachers advocate the ...
... rules and actual calculation , merely by the effort or operation of the mind , without the use of figures , is unquestionably absurd and inconsistent in the extreme ; and , strange it may appear , some authors and teachers advocate the ...
Σελίδα 6
... rule for adding several sums together in dollars , cents and mills , is this : -add all the mills , and carry one ... rules , both mentally and on the board ; every school should have several boards , one for each class , and not let a ...
... rule for adding several sums together in dollars , cents and mills , is this : -add all the mills , and carry one ... rules , both mentally and on the board ; every school should have several boards , one for each class , and not let a ...
Σελίδα 13
... rule in Arithmetic , the use of which is to ascertain the amount or sum total of two or more numbers , when put or added together ; as , 5 + 5 = 10 : that is 5 and 5 make 10 . RULE . Set the given numbers under each other , with units ...
... rule in Arithmetic , the use of which is to ascertain the amount or sum total of two or more numbers , when put or added together ; as , 5 + 5 = 10 : that is 5 and 5 make 10 . RULE . Set the given numbers under each other , with units ...
Σελίδα 18
... rule in Arithmetic ? How many primary rules are there in Arithmetic ? What are they called ? How many secondary rules are there ? Name them . Why are they called secondary ? What is Addition ? What is the use of Addition ? What is the rule ...
... rule in Arithmetic ? How many primary rules are there in Arithmetic ? What are they called ? How many secondary rules are there ? Name them . Why are they called secondary ? What is Addition ? What is the use of Addition ? What is the rule ...
Σελίδα 19
... rule in Arithmetic , and is the very reverse of Addition . It teaches to take a less number from a greater of the same name , and to show the difference , or remainder , as 10-5 , 5 remain ; that is , 5 subtracted from 10 , it will ...
... rule in Arithmetic , and is the very reverse of Addition . It teaches to take a less number from a greater of the same name , and to show the difference , or remainder , as 10-5 , 5 remain ; that is , 5 subtracted from 10 , it will ...
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acres amount annuity annum answer Arithmetic Bring bush bushels of wheat ciphers circumference common difference compound interest contained cord cube root cubic debt decimal point denomination diameter discount Divide dividend division divisor dollars drams equal example feet long figure foot gain or lose gallons galls given number grains greatest common divisor hogsheads hundred improper fraction inches least common multiple length less lowest terms measure miles mixed number months multiplicand Multiply nails number of terms ounces paid payment pecks pints poles present worth proof proportion purchased quantity quarters quarts questions quotient rate per cent ratio Reduce remainder required the number rods roods rule sell sold square feet square root subtract sugar thick third term TROY WEIGHT VULGAR FRACTIONS weight whole number wine yards cost yards of cloth
Δημοφιλή αποσπάσματα
Σελίδα 149 - Compute the interest on the principal to the time of the first payment, and if the payment exceed this interest, add the interest to the principal and from the sum subtract the payment: the remainder forms a new principal.
Σελίδα 188 - If the errors are alike, divide the difference of tire products by the difference of the errors, and the quotient will be the answer. 5. If the errors are unlike, divide the sum of the products by the sum of the errors, and the quotient will be the answer.
Σελίδα 32 - Find how many times the divisor is contained in the first figure, or figures, of the dividend, and, setting it directly under the dividend, carry the remainder, if any, to the next figure as so many tens.
Σελίδα 127 - RULE. Multiply all the numerators together for a new numerator, and all the denominators for a new denominator: then reduce the new fraction to its lowest terms.
Σελίδα 118 - Operations with Fractions A) To change a mixed number to an improper fraction, simply multiply the whole number by the denominator of the fraction and add the numerator.
Σελίδα 107 - A and B depart from the same, place and travel the same road ; but A goes 5 days before B, at the rate of 15 miles a day . B follows at the rate of 20 miles a . day } what distance must he travel to overtake A ? Ans. 300 miles RULE OF THREE INVERSE.
Σελίδα 214 - There are five things in arithmetical progression, any three of which being given, the other two may be found : — 1st. The first term. 2d. The last term. 3d. The number of terms. 4th. The common difference. 5th. The sum of all the terms.
Σελίδα 253 - Suppose a ladder, 60 feet long, be so planted as to reach a window 37 feet from the ground on one side of the street, and, without moving it at the foot, will reach a window 23 feet high on the other side ; what was the breadth of the street?
Σελίδα 254 - The height of a tree growing in the centre of a circular island 44 feet in diameter, is 75 feet, and a line stretched from the top of it over to the hither edge of the water, is 256 feet. What is the breadth of the stream, provided...
Σελίδα 118 - RULE. Divide the numerator by the denominator, and the quotient will be the whole or mixed number sought.