The Prussian Calculator: By which All Business Calculations are Performed by One Rule ; with an Appendix

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Power Press of E. Shepard, 1846 - Arithmetic - 191 pages
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Page 34 - Interest, the surplus of interest must not be taken to augment the principal ; but interest continues on the former principal until the period when the payments, taken together, exceed the interest due and then the surplus is to be applied towards discharging the principal, and interest is to be computed * * * as aforesaid.
Page 180 - LIQUID MEASURE 4 gills (gi.) = 1 pint (pt.) 2 pints = 1 quart (qt...
Page 23 - If a man travel 240 miles in 12 days, when the days are 12 hours long, in how many days will he travel 720 miles, when the days are 16 hours long? Ans. 27 days.
Page 141 - Ans. 10 feet. 16. A wall is 32 feet high, and a ditch before it is 24 feet wide ; what is the length of a ladder that will reach from the top of the wall to the opposite side of the ditch ? Ans.
Page 34 - The Rule for casting interest, where partial payments have been made, is to apply the payment, in the first place, to the discharge of the interest then due. If the payment exceeds the interest, the surplus goes toward discharging the principal, and the subsequent interest is to be computed on the balance of principal remaining due. If the payment be less than the interest, the surplus of...
Page 178 - TABLE. 16 Drams (dr.) make 1 Ounce, oz. 16 Ounces " 1 Pound, Ib. 25 Pounds " 1 Quarter, qr. 4 Quarters " 1 Hundred Weight, cwt. 20 Hundred Weight
Page 99 - To reduce a mixed number to an improper fraction. Multiply the whole number by the denominator of the fraction, and to the product add the given numerator.
Page 181 - TABLE. 2 pints (pts.) make - 1 quart, - marked - qt. 8 quarts ----- 1 peck, ----- pk. 4 pecks ----- 1 bushel, ----- bu. 36 bushels ----- 1 chaldron, - - - - ch.
Page 160 - ... of the last product will be the solidity. EXAMPLES. 1. How many solid feet are there in a wedge whose base is 5 feet...
Page 96 - A vulgar fraction is a part, or parts of a unit or integer expressed by two numbers, placed one above the other, with a line drawn between them; as -i one fourth, f two thirds. The number above the line is called the numerator, and that below the line the denominator.

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