Orton's Lightning Calculator, and Accountant's Assistant: The Shortest, Simplest, and Most Rapid Method of Computing Numbers, Adapted to Every Kind of Business, and Within the Comprehension of Every One Having the Slightest Knowledge of FiguresT.K. Collins, 1866 - 194 pages |
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Page 24
... Multiply 32 by 45 in a single line . 235 45 Here we multiply 5 × 2 and set down and 32 carry as usual ; then to what ... any number of places ; but let each step be made perfectly familiar before advancing to another . Begin with two places , ...
... Multiply 32 by 45 in a single line . 235 45 Here we multiply 5 × 2 and set down and 32 carry as usual ; then to what ... any number of places ; but let each step be made perfectly familiar before advancing to another . Begin with two places , ...
Page 26
... Multiply 79 by 71 in a single line . 79 71 Here we multiply 1 × 9 and set down the result , then we multiply the 7 in the mul- tiplicand , increased by 1 by the 7 in the multiplier ... multiply any number , 26 ORTON'S LIGHTNING CALCULATOR .
... Multiply 79 by 71 in a single line . 79 71 Here we multiply 1 × 9 and set down the result , then we multiply the 7 in the mul- tiplicand , increased by 1 by the 7 in the multiplier ... multiply any number , 26 ORTON'S LIGHTNING CALCULATOR .
Page 27
... multiply any number , of two figures , by 11 , RULE . Write the sum of the figures between them . 1. Multiply 45 by 11 . Ans . 495 Here 4 and 5 are 9 , which write between 4 & 5 . 2. Multiply 34 by 11 . Ans . 374 . N. B. When the sum of ...
... multiply any number , of two figures , by 11 , RULE . Write the sum of the figures between them . 1. Multiply 45 by 11 . Ans . 495 Here 4 and 5 are 9 , which write between 4 & 5 . 2. Multiply 34 by 11 . Ans . 374 . N. B. When the sum of ...
Page 28
... multiply the whole number by the next higher whole number , because half of any number taken twice and added to its square is the same as to multiply the given number by ONE more than itself . The same principle will multiply any two like ...
... multiply the whole number by the next higher whole number , because half of any number taken twice and added to its square is the same as to multiply the given number by ONE more than itself . The same principle will multiply any two like ...
Page 29
... Every Kind of Business, and Within the Comprehension of Every One Having the Slightest Knowledge of Figures Hoy D. Orton. Where the sum of the Fractions is ONE . To multiply any two like numbers together when the sum of the fractions is ...
... Every Kind of Business, and Within the Comprehension of Every One Having the Slightest Knowledge of Figures Hoy D. Orton. Where the sum of the Fractions is ONE . To multiply any two like numbers together when the sum of the fractions is ...
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Common terms and phrases
12 days 20 per cent 60 days acres add the product add the ratio adding aliquot annex base breadth cancel carry circle X circumference completes the product computing interest contain cost cube number cube root cubic feet cubic inches decimal places diameter divide divisible divisor left equal EXAMPLE factors feet long find the interest find the solidity fractions frustum given number gives the interest GUNTER'S CHAIN half hence hight integers joists measure method minuend mixed number mode multi multiple of 9 multiplicand multiply any number multiply the principal nearest unit NOTE number of days number of months operation pounds quotient radix rate per cent reduced remainder Required the interest result rule RULE.-Divide RULE.-Multiply side simply say single line solid content square number square root subtract thickness troy pound troy weight unit figure usury vulgar fractions weight whole number yards แ แ
Popular passages
Page 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...
Page 183 - OF TIME. 60 Seconds = 1 Minute 60 Minutes «= 1 Hour 24 Hours => 1 Day 7 Days = 1 Week 28 Days =• 1 Lunar Month...
Page 183 - CUBIC MEASURE 1728 cubic inches = 1 cubic foot 27 cubic feet = 1 cubic yard...
Page 144 - To measure a Parallelogram, or long square. RULE. Multiply the length by the breadth, and the product will be the area or superficial content.
Page 145 - Or, in measuring boards, you may multiply the length in feet by the breadth in inches, and divide the product by 12 ; the quotient will give the answer in square feet, etc. 21x18 Thus, in the last example, =31£sq, ft., us before. 12 5. If a board be 8 inches wide, how much in length will make a foot square ? RULE.
Page 182 - The quarters are divided in the same way. 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.
Page 132 - ... broad; what length must a ladder be to reach from the outside of the ditch to the top of the castle?
Page 143 - EXAMPLES. 1. How many square feet of boards are contained in the floor of a room which is 20 feet square?
Page 131 - Ans, 327 As the unit figure, in this example, is 9, if the number is a square, it must divide by either 9, or 49. After dividing by 9 we have 11881 for the other factor, a prime number, therefore its root is a prime number=109.
Page 42 - CENTS. Now, as removing the decimal point one place to the left, on the cost of a dozen articles, gives the selling price of a single one with 20 per cent, added to the cost, and, as the cost of any article is 100 per cent., it is obvious that the selling price would be 20 per cent, more, or 120 per cent. ; hence, to find 50 per cent, profit, which would make the selling price 150 per cent., we would first find 120 per cent., then add 30 per cent...