Mental arithmetic; or, A concise system of commercial arithmeticSimpkin, Marshall, & Company, 1852 - 92 σελίδες |
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Σελίδα 13
... whole class add 2 to the original number - this done , begin at the top , and request the one at the top to subtract 2 from the sum ; the next one 2 from the remainder , and so on through the whole class . This exercise may also be ...
... whole class add 2 to the original number - this done , begin at the top , and request the one at the top to subtract 2 from the sum ; the next one 2 from the remainder , and so on through the whole class . This exercise may also be ...
Σελίδα 14
... enclosed by the dark lines , should be accurately committed to memory , and those who can should get the whole of it . 72 78 MENTAL EXERCISES IN SIMPLE MULTIPLICATION AND SIMPLE DIVISION . Multiply 14 MENTAL ARITHMETIC .
... enclosed by the dark lines , should be accurately committed to memory , and those who can should get the whole of it . 72 78 MENTAL EXERCISES IN SIMPLE MULTIPLICATION AND SIMPLE DIVISION . Multiply 14 MENTAL ARITHMETIC .
Σελίδα 36
... whole number of shillings . - The reason of this is , that multiplying by half the number of shillings , and taking the units ' figure and doubling it for shillings , and the other figures as pounds , is the same as multiplying by the whole ...
... whole number of shillings . - The reason of this is , that multiplying by half the number of shillings , and taking the units ' figure and doubling it for shillings , and the other figures as pounds , is the same as multiplying by the whole ...
Σελίδα 77
... whole number of days , as is done in the above example . CALCULATE THE INTEREST ON THE FOLLOWING SUMS : - £ 147 for 30 days at £ 5 per cent . £ 0 12 1 180 10s . for 39 22 " " 240 for 120 19 375 for 75 33 " " 180 for 19 1400 for 49 22 29 ...
... whole number of days , as is done in the above example . CALCULATE THE INTEREST ON THE FOLLOWING SUMS : - £ 147 for 30 days at £ 5 per cent . £ 0 12 1 180 10s . for 39 22 " " 240 for 120 19 375 for 75 33 " " 180 for 19 1400 for 49 22 29 ...
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Mental Arithmetic, Or, a Concise System of Commercial Arithmetic James Strachan Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2016 |
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27 yards 33 per cent acre amount bill Calculate the interest CALCULATE THE VALUE Commission considered as pence considered as pounds consists of pence cost at 74d Divide the principal EXAMPLES find the interest Find the number find the price find the value FOCHABERS following sums given number given quantity given rate interest in shillings interest of 120 MENTAL ARITHMETIC metic money for months months at 33 multi multiplying the price number of articles number of dozens number of months number of pence number of pounds number of scores number of shillings penny penny-weight pole in pence pounds sterling price consists principal in pounds quantity or number quotient rate per cent rent Required the interest RULE.-Multiply the price RULE.-Multiply the principal scruple Selling price sixpences stones of hay sum of money TROY WEIGHT true discount usual method yards amount دو وو
Δημοφιλή αποσπάσματα
Σελίδα 17 - Square inches (sq. in.) make 1 square foot (sq. ft.). 9 Square feet 1 square yard (sq. yd.). 30$ Square yards 1 square pole (sq. po.). 40 Square poles 1 rood (ro.). 4 Roods , 1 acre (ac.). 640 Acres 1 square mile.
Σελίδα 18 - Gallon gal. 2 Gallons = 1 Peck pk. 4 Pecks = 1 Bushel bush. 8 Bushels = 1 Quarter qr.
Σελίδα 18 - WINE MEASURE. 4 gills (gl.) make 1 pint marked pt. 2 pints 1 quart qt. 4 quarts 1 gallon gal. 31J gallons 1 barrel or half hhd. bbl. 63 gallons 1 hogshead hhd. 2 hogsheads 1 pipe or butt p. or b. 2 pipes 1 tun T. By this measure brandy, spirits, perry, cider, mead, vinegar, and oil are measured. 15. At 3 dollars a gallon, what will 2 pipes of wine cost ? 16.
Σελίδα 17 - Linear Measure 12 inches (in.) = 1 foot (ft.) 3 feet = 1 yard (yd.) 5...
Σελίδα 16 - Apothecaries' Weight 20 grains (gr.) = 1 scruple (sc.) 3 scruples = 1 dram (dr.) 8 drams = 1 ounce (oz.) 12 ounces = 1 pound (Ib...
Σελίδα 17 - Yard 1 yd. 5 Quarters ... 1 English Ell. 6 Quarters ... 1 French Ell. 3 Quarters ... 1 Flemish Ell.
Σελίδα 16 - Avoirdupois Weight. 16 drams (dr.) = 1 ounce (oz.). 16 ounces — 1 pound (Ib.). 100 pounds — 1 hundredweight (cwt.). .2000 pounds - 1 ton (t.). The long ton is still used in the United States Custom Houses and in wholesale transactions in iron and coal. 112 pounds avoirdupois =- 1 long hundredweight 2240 pounds avoirdupois = 1 long ton. 1 pound avoirdupois •* 7000 Troy grains.
Σελίδα 69 - Multiply the principal by the number of days, divide the product by 73, and point off two decimals: the quotient will be the interest, in the denomination of the principal.
Σελίδα 15 - ... means 9 tens, and the 3 which we place under it means 3 tens, showing, that 3 is contained in 90, 30 times. A Dividend is a number which is to be divided; such is the number 396 in the above example.
Σελίδα 18 - Time 60 seconds (sec.) = 1 minute (mm.) 60 minutes = 1 hour (hr.) 24 hours = 1 day 7 days = 1 week 4 weeks = 1 lunar month 365 days = 1 year 366 days = 1 leap year Measurement of Angles 60 seconds (') = 1 minute (') 60 minutes = 1 degree (°) 60 degrees = 1 sextant 90 degrees = 1 quadrant (or right angle) 360 degrees = 1 full circle...