Orton's Lightning Calculator and Accountant's AssistantH. D. Orton & Company, 1871 - 186 σελίδες |
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Σελίδα 4
... I have been deeply indebted to S. J. DONALDSON , Jr. , of Baltimore , a gentleman favorably known as the author of " Lyrics , and Other Poems . " INTRODUCTION . Arithmetic means reckoning by numbers , calculating . Edice T ...
... I have been deeply indebted to S. J. DONALDSON , Jr. , of Baltimore , a gentleman favorably known as the author of " Lyrics , and Other Poems . " INTRODUCTION . Arithmetic means reckoning by numbers , calculating . Edice T ...
Σελίδα 5
Hoy D. Orton. INTRODUCTION . Arithmetic means reckoning by numbers , calculating . Notation means writing numbers . Numeration means reading numbers . Number is one or more things or units , as one , two , & c . Unit or one is a single ...
Hoy D. Orton. INTRODUCTION . Arithmetic means reckoning by numbers , calculating . Notation means writing numbers . Numeration means reading numbers . Number is one or more things or units , as one , two , & c . Unit or one is a single ...
Σελίδα 14
... calculations . In adding a long column , where the figures are of a medium size , that is , as many 8s and 9s as there are 2s and 3s , it is better to add about three figures at a time , because the eye will distinctly see that many at ...
... calculations . In adding a long column , where the figures are of a medium size , that is , as many 8s and 9s as there are 2s and 3s , it is better to add about three figures at a time , because the eye will distinctly see that many at ...
Σελίδα 16
... are fond of proving the cor- rectness of work , and pupils are often instructed to do so , for the double purpose of giving them exercise in calculation and saving their teacher the trouble of 16 ORTON'S LIGHTNING CALCULATOR .
... are fond of proving the cor- rectness of work , and pupils are often instructed to do so , for the double purpose of giving them exercise in calculation and saving their teacher the trouble of 16 ORTON'S LIGHTNING CALCULATOR .
Σελίδα 17
... calculation , and the same routine be again followed , we are very liable to fall again into the same error . If , for instance , in running up a column of Addition you should say 84 and 8 are 93 , you would be liable , in going over ...
... calculation , and the same routine be again followed , we are very liable to fall again into the same error . If , for instance , in running up a column of Addition you should say 84 and 8 are 93 , you would be liable , in going over ...
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Orton's Lightning Calculator: And Accountant's Assistant Hoy D. Orton Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2017 |
Orton's Lightning Calculator: And Accountant's Assistant Orton Hoy D Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2013 |
Συχνά εμφανιζόμενοι όροι και φράσεις
18 inches 20 per cent 60 days acres adding aliquot annex answer avoirdupois base breadth cancel ciphers circle X circumference completes the product computing interest contain cost cube root cubic feet cubic foot cubic inches decimal places dimensions divide the product divisor left Drachms EXAMPLE EXAMPLE.-How find the interest find the number foot fractions frustum girth given number gives the interest grains GUNTER'S CHAIN half hence hewn hight inches thick integers joists last product length in feet measure method mixed number multiplicand multiply any number multiply the principal nearest unit NOTE number of bushels number of days number of months Operation ounce pounds quotient rate per cent reduced rods rule RULE.-Divide RULE.-Multiply side simply say single line solid content square number square root stick of timber superficial Troy weight unit figure usury vulgar fractions whole number wine gallons yards
Δημοφιλή αποσπάσματα
Σελίδα 183 - OF TIME. 60 Seconds = 1 Minute 60 Minutes «= 1 Hour 24 Hours => 1 Day 7 Days = 1 Week 28 Days =• 1 Lunar Month...
Σελίδα 80 - Thou shalt not lend upon usury to thy brother; usury of money, usury of victuals, usury of any thing that is lent upon usury: unto a stranger thou mayest lend upon usury; but unto thy brother thou shalt not lend upon usury...
Σελίδα 149 - ... the square root of the last product will be the area of the triangle. EXAMPLE. Suppose I have a triangular fish-pond, whose three sides measure 400, 348, and 312yds; what quantity of ground does it cover?
Σελίδα 182 - The description of a forty acre lot would read : The south half of the west half of the south-west quarter of section 1 in township 24, north of range 7 west, or as the case might be ; and sometimes will fall short and sometimes overrun the number of acres it is supposed to contain. The nautical mile is 795 4-5 feet longer than the common mile. SURVEYORS
Σελίδα 95 - To find the interest of any sum at 6 per cent, per annum for any number of months and days.
Σελίδα 132 - ... broad; what length must a ladder be to reach from the outside of the ditch to the top of the castle?
Σελίδα 87 - If the time consists of years and months, reduce them to montJis, and place 12 (the number of months in a year) on the left hand side of the line. Should the time consist of months and days, reduce them to days or decimal parts of a month. If reduced to days, place 36 on the left. If to decimals parts of a month, place 12 only as before. Point off two decimal places when the time is in months, and three decimal places wlien the time is in days.
Σελίδα 137 - By repeating the operation with the root last (blind as an assumed root, we may obtain results to any degree of exactness ; one operation, however, is generally sufficient. EXAMPLES. 1. Required the cube root of 66. The cube root of 64 is 4. Now it is manifest that the cube root of 66 is a little more than 4, and by taking a similar proportion to the preceding, we have 64x2=128...
Σελίδα 49 - Multiply the diameter in inches at the small end, by one-half the number of inches, and this product by the length of the log in feet, which last product divide by 12.
Σελίδα 64 - ... of tons. An easy mode of ascertaining the value of a given number of Ibs. of hay, at a given price per ton of 2000 Ibs. RULE. — Multiply the number of pounds of hay (coal, or anything else which is bought and sold by the ton) by...