A Mental Arithmetic, Upon the Inductive PlanR.S. Davis & Company, 1860 - 156 σελίδες |
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Σελίδα 44
... twice as many lacking 4 dollars , and C twice as many as both of the others ; what would have been the cost to each if the expense had been shared equally ? 34. If 3 cords of wood are worth 18 dollars , and 10 cords are given for 12 ...
... twice as many lacking 4 dollars , and C twice as many as both of the others ; what would have been the cost to each if the expense had been shared equally ? 34. If 3 cords of wood are worth 18 dollars , and 10 cords are given for 12 ...
Σελίδα 77
... ? NOTE . Since 1 = 4 , of 12 ; or , since 1 = 3 , and 1 = 1 , there are twice as many fourths as halves in a number . 2. John had of a dollar ; how many sixths had he ? 3. A man bought of an acre of land at MENTAL ARITHMETIC . 77.
... ? NOTE . Since 1 = 4 , of 12 ; or , since 1 = 3 , and 1 = 1 , there are twice as many fourths as halves in a number . 2. John had of a dollar ; how many sixths had he ? 3. A man bought of an acre of land at MENTAL ARITHMETIC . 77.
Σελίδα 91
... twice Richard's money is as much as Charles has ; if Charles has $ 42 , how much each have Henry and Richard ? 30. I have an orchard , in which of the trees bear peaches , bear apples , of them bear pears , 4 bear cherries , and 10 bear ...
... twice Richard's money is as much as Charles has ; if Charles has $ 42 , how much each have Henry and Richard ? 30. I have an orchard , in which of the trees bear peaches , bear apples , of them bear pears , 4 bear cherries , and 10 bear ...
Σελίδα 95
... twice what per cent . of $ 150 ? 23. is what per cent . of 121 ? NOTE . 12 as 1 is of 50 . 24 . 25 . 26 . 27 . - 25-50 ; and is the same per cent . of 50 Of 20 ? Of 61 ? is what per cent . of 4 ? Of 12 ? 1 is what per cent . of 21 ? Of ...
... twice what per cent . of $ 150 ? 23. is what per cent . of 121 ? NOTE . 12 as 1 is of 50 . 24 . 25 . 26 . 27 . - 25-50 ; and is the same per cent . of 50 Of 20 ? Of 61 ? is what per cent . of 4 ? Of 12 ? 1 is what per cent . of 21 ? Of ...
Σελίδα 112
... twice as much rye as wheat , twice as much wheat as buckwheat , and as much barley as rye ; there are 120 bushels in all ; how much of each kind ? 15. John has 26 cents ' worth of marbles , g of the number of which are worth 8 to a cent ...
... twice as much rye as wheat , twice as much wheat as buckwheat , and as much barley as rye ; there are 120 bushels in all ; how much of each kind ? 15. John has 26 cents ' worth of marbles , g of the number of which are worth 8 to a cent ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
12 cents 12 days 12 dollars 20 per cent 40 dollars 50 cents 9 cents 9 dollars acres amount barrel of flour bought boys bushels of corn bushels of wheat cents a dozen cents a pound cents a quart cents a yard cents apiece contained cords of wood cows cubic feet decimal fraction denominator dimes dollar a bushel dollars a yard earn eight equal equivalent mixed factors fifths fourths furlongs gain gallons gave give hogshead horse hundred hundred-weight improper fraction interest of $100 John less LESSON lowest terms MENTAL ARITHMETIC merator miles an hour mixed number molasses months Multiply nator NOTE oranges ounces paid pecks pence pennyweights pine-apple pints pounds of sugar present worth prime number quarters quire rate per cent receive Reduce remainder sell sevenths sheep shillings sixths square rods subtract tens third weeks whole number yards of broadcloth yards of cloth
Δημοφιλή αποσπάσματα
Σελίδα 28 - If two men start from the same place, and travel in opposite directions, the one travelling at the rate of 3 miles an hour, and the other at the rate of 4 miles an hour, how far apart will they be at the end of 5 hours ? 11.
Σελίδα 122 - Multiplication is the process of taking one number as many times as there are units in another number.
Σελίδα 55 - NUMBERS. 12 units = 1 dozen. 12 dozen — 1 gross. 12 gross = 1 great gross. 20 units = 1 score.
Σελίδα 50 - Square Measure 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet = 1 square yard (sq. yd.) 30j square yards = 1 square rod (sq. rd.) 160 square rods = 1 acre (A.) 640 acres = 1 square mile (sq.
Σελίδα 46 - TROY WEIGHT. 24 grains (gr.) = 1 pennyweight (pwt.). 20 pennyweights = 1 ounce (oz.). 12 ounces = 1 pound (lb.). 351. Apothecaries' weight is used in mixing medicines and in selling them at retail. APOTHECARIES
Σελίδα 53 - DRY MEASURE 2 pints (pt.) = 1 quart (qt.) 8 quarts =1 peck (pk.) 4 pecks = 1 bushel (bu...
Σελίδα 47 - AVOIRDUPOIS WEIGHT. 16 Drams (dr.) make 1 Ounce, oz. 16 Ounces " 1 Pound, Ib. 25 Pounds " 1 Quarter, qr. 4 Quarters " 1 Hundred-weight, cwt. 20 Hundred-weight
Σελίδα 114 - A cistern has 4 pipes ; the first will fill it in 2 hours, the second will fill it in 3 hours, the third in 4 hours, and the fourth will empty it in 2 hours ; now, if the pipes are all open at the same time, how long •will it take to fill the cistern ? 10.
Σελίδα 66 - When the numerator is less than the denominator, the fraction is called a proper fraction ; when the numerator is equal to or larger than the denominator, the fraction is called an improper fraction ; when a fraction is joined with a whole number, the expression is called a mixed number.