Mental Arithmetic SimplifiedT. Brooke and Company, 1838 - 48 σελίδες |
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Σελίδα 1
... measure , meet their expectations . He particularly presses upon all Parents or Teachers , who raay use his book , to proceed upon the system laid down . To com- mence with exercising the senses , and developing the faculties . To teach ...
... measure , meet their expectations . He particularly presses upon all Parents or Teachers , who raay use his book , to proceed upon the system laid down . To com- mence with exercising the senses , and developing the faculties . To teach ...
Σελίδα 3
... measure , meet their expectations . He particularly presses upon all Parents or Teachers , who may use his book , to proceed upon the system laid down . To com- mence with exercising the senses , and developing the faculties . To teach ...
... measure , meet their expectations . He particularly presses upon all Parents or Teachers , who may use his book , to proceed upon the system laid down . To com- mence with exercising the senses , and developing the faculties . To teach ...
Σελίδα 11
... measure , meet their expectations . He particularly presses upon all Parents or Teachers , who raay use his book , to proceed upon the system laid down . To com- mence with exercising the senses , and developing the faculties . To teach ...
... measure , meet their expectations . He particularly presses upon all Parents or Teachers , who raay use his book , to proceed upon the system laid down . To com- mence with exercising the senses , and developing the faculties . To teach ...
Σελίδα 44
... Measures , & c . cannot be made out by calculating , but still they may be wrote out upon slate or paper , either from the book or from dictation , until the pupils can write them from memory . ( No. 2 . ) - MULTIPLICATION TABLES . 2 44.
... Measures , & c . cannot be made out by calculating , but still they may be wrote out upon slate or paper , either from the book or from dictation , until the pupils can write them from memory . ( No. 2 . ) - MULTIPLICATION TABLES . 2 44.
Σελίδα 46
... 8 6 8 15 .. 60 10 200 2400 2100 8 15 15 16 .. 62 11 220..2640 2200 9 3 4 · ·· 64 12 240 2880 2300 9 11 8 · ·· COMMERCIAL TABLES . COMMERCIAL TABLES CONTINUED . Imperial Measures of 164 .. .. 10 0 0 66 13 2400 .. 3120 260 .. 46.
... 8 6 8 15 .. 60 10 200 2400 2100 8 15 15 16 .. 62 11 220..2640 2200 9 3 4 · ·· 64 12 240 2880 2300 9 11 8 · ·· COMMERCIAL TABLES . COMMERCIAL TABLES CONTINUED . Imperial Measures of 164 .. .. 10 0 0 66 13 2400 .. 3120 260 .. 46.
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1.-Arithmetic 3.-NUMERATION teaches Appendix article cost avoirdupois black board bushels clear views Demonstration.-Taking farthings Demonstration.-The interest denominator dividing by 48 DONCASTER drachm equal to dividing equal to multiplying Example.-One examples farthings as shillings farthings is equal find the interest find the value gallons given number gross improper fraction Knight's Arithmetic less number less than unity low numbers Measure multiplying by 48 number be divided number of articles number of figures number of months number of pence number of pounds number of shillings Omitting Sundays OTLEY ounce particular number pence as shillings pounds as pence quotient rate per cent RULE.-Divide RULE.-Multiply RULE.-Reckon RULE.-Take score shillings as farthings shillings is equal squirrel stole stone Subtraction sum of money take the aliquot Troy Weight unit figure views of number week whole number write any number yards
Δημοφιλή αποσπάσματα
Σελίδα 9 - 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 40 - DIVISIONS OF THE CIRCLE. 60 Seconds = 1 Minute. 60 Minutes = 1 Degree. 30 Degrees = 1 Sign. 90 Degrees = 1 Quadrant. 360 Degrees, or 12 Signs = 1 Circumference. Formerly the subdivisions were carried on by sixties ; thus, the second was divided into 60 thirds, the third into 60 fourths, &c.
Σελίδα 11 - To find the value of 100 articles, the price of one being given. RULE. — For every farthing in the price take as many pence, and twice as many shillings. Thus, 100 pencils at 1-Jd. each is 12«.
Σελίδα 36 - To find the interest of any sum of money at any rate per cent, for any given time. Ex. 1. What is the interest of $ 26.25 for 2 years, 4 months, at 7 per cent.
Σελίδα 40 - Thirty days hath September, April, June, and November, February hath twenty-eight alone, and all the rest hath thirty and one.
Σελίδα 39 - Weight. 16 drams — 1 ounce. 16 ounces = 1 pound. 14 pounds = 1 stone.
Σελίδα 39 - LENGTH. 12 inches = 1 foot 3 feet = 1 yard 5| yards = 1 pole or perch 40 poles =• 1 furlong 8 furlongs = 1 mile 3 miles = 1 league...
Σελίδα 33 - Prove one of the following rules of mental arithmetic in such a way as to make it intelligible to a class of children. 1. To find the value of 144 things in shillings, multiply the price in farthings by 3. 2. To find the interest of any sum of money for any number of months at any rate per cent., count one penny for each £10 in the principal, then multiply by the number of months and by double the rate per cent.
Σελίδα 39 - Apothecaries' system 20 grains 1 scruple 3 scruples 1 drachm 8 drachms 1 ounce 12 ounces 1 pound...
Σελίδα 39 - Sq. Yards = 1 Perch or Rod 40 Perches = 1 Rood 4 Roods = 1 Acre 640 Acres = 1 Sq. Mile 3. MEASURES OF SOLIDITY AND CAPACITY. DIVISION I — SOLIDITY. 1728 Cubic Inches = 1 Cubic Foot 27 Cubic Feet = 1 Cubic Yard DIVISION IL — CAPACITY.