A Mental Arithmetic, Upon the Inductive PlanR.S. Davis & Company, 1860 - 156 σελίδες |
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Σελίδα 58
... fifth of any thing ? By 2 fifths ? By 3 fifths ? By 4 fifths ? 3. How many fifths in a whole one ? 4. What part of 5 is 3 ? 2 ? 4 ? 5. 8 is how many times 5 ? 6. 9 is how many times 5 ? 7. 29 is how many times 5 ? 8. 47 is how many ...
... fifth of any thing ? By 2 fifths ? By 3 fifths ? By 4 fifths ? 3. How many fifths in a whole one ? 4. What part of 5 is 3 ? 2 ? 4 ? 5. 8 is how many times 5 ? 6. 9 is how many times 5 ? 7. 29 is how many times 5 ? 8. 47 is how many ...
Σελίδα 60
... writing- books , at 10 cents a book ? 52. Robert , having $ 60 to spend , paid 1 twelfth of it for a hat , 2 fifths for a suit of clothes , and 3 tenths for tuition ; how much then had he left ? 1 . 2 . 3 . 4 . LESSON XXVII 60 GREENLEAF'S.
... writing- books , at 10 cents a book ? 52. Robert , having $ 60 to spend , paid 1 twelfth of it for a hat , 2 fifths for a suit of clothes , and 3 tenths for tuition ; how much then had he left ? 1 . 2 . 3 . 4 . LESSON XXVII 60 GREENLEAF'S.
Σελίδα 61
... fifths of what number ? 8 . 9 . 10 . 11 . 8 is 4 fifths of what number ? 9 is 3 sixths of what number ? 12. 10 is 5 eighths of what number ? 13. 16 is 4 ninths of what number ? 14. 18 is 9 tenths of what number ? 15. 20 is 4 fifths of ...
... fifths of what number ? 8 . 9 . 10 . 11 . 8 is 4 fifths of what number ? 9 is 3 sixths of what number ? 12. 10 is 5 eighths of what number ? 13. 16 is 4 ninths of what number ? 14. 18 is 9 tenths of what number ? 15. 20 is 4 fifths of ...
Σελίδα 62
... fifths of 15 is 3 fifths of what number ? 58. 5 ninths of 36 is 2 fifths of how many times 10 ? 59. 4 tenths of 30 is 2 thirds of how many times 3 ? 60. 5 sixths of 18 is 3 fifths of how many times 5 ? 61. 6 tenths of 20 is 1 seventh of ...
... fifths of 15 is 3 fifths of what number ? 58. 5 ninths of 36 is 2 fifths of how many times 10 ? 59. 4 tenths of 30 is 2 thirds of how many times 3 ? 60. 5 sixths of 18 is 3 fifths of how many times 5 ? 61. 6 tenths of 20 is 1 seventh of ...
Σελίδα 63
... fifth of a yard cost ? 3. At $ 6 a ton , what will 7 sixths of a ton cost ? 4. At $ 12 a barrel , what will 1 barrel ... fifths of the whole number , and the whole number was 5 times as many as he had in the smallest brood ; how many had ...
... fifth of a yard cost ? 3. At $ 6 a ton , what will 7 sixths of a ton cost ? 4. At $ 12 a barrel , what will 1 barrel ... fifths of the whole number , and the whole number was 5 times as many as he had in the smallest brood ; how many had ...
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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.