## Mental arithmetic; or, A concise system of commercial arithmetic |

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Mental Arithmetic, Or, a Concise System of Commercial Arithmetic James Strachan No preview available - 2016 |

### Common terms and phrases

33 per cent allow annum answer bill Calculate the interest CALCULATE THE VALUE cent Commission considered considered as pence considered as pounds contained Deduct difference divide Divide the principal dram equal EXAMPLES farthings find the interest find the price find the value following sums fraction give given number given quantity hence hundred-weights inches interest of 120 MEASURE method miles money for months months at 13 multi multiplying the price number of articles number of months number of pounds Ounce pair pence penny plying pole pounds sterling principal in pounds profit quarters quotient reason receive remainder rent Required the interest rood RULE RULE.-Multiply the principal scruple Selling price shillings simple sixpences sold Square stones subtract sugar sum of money taken troy true discount USUAL METHODS weight whole write yards amount yards cost دو وو

### Popular passages

Page 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.

Page 18 - Gallon gal. 2 Gallons = 1 Peck pk. 4 Pecks = 1 Bushel bush. 8 Bushels = 1 Quarter qr.

Page 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.

Page 17 - Linear Measure 12 inches (in.) = 1 foot (ft.) 3 feet = 1 yard (yd.) 5...

Page 16 - Apothecaries' Weight 20 grains (gr.) = 1 scruple (sc.) 3 scruples = 1 dram (dr.) 8 drams = 1 ounce (oz.) 12 ounces = 1 pound (Ib...

Page 17 - Yard 1 yd. 5 Quarters ... 1 English Ell. 6 Quarters ... 1 French Ell. 3 Quarters ... 1 Flemish Ell.

Page 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.

Page 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.

Page 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.

Page 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...