A Mental Arithmetic, Upon the Inductive PlanR.S. Davis & Company, 1860 - 156 σελίδες |
Αναζήτηση στο βιβλίο
Αποτελέσματα 1 - 5 από τα 21.
Σελίδα 4
... multiplication , an inclined cross , X , is read times , or multiplied by , and denotes that the quantities between which it is placed are to be multiplied together ; as 5 X 4 equals 20 . 5. The sign of division , a horizontal line ...
... multiplication , an inclined cross , X , is read times , or multiplied by , and denotes that the quantities between which it is placed are to be multiplied together ; as 5 X 4 equals 20 . 5. The sign of division , a horizontal line ...
Σελίδα 72
... a bushel ? NOTE . Dividing the denominator by any number affects the value of a fraction the same as multiplying the numerator . The denominator of divided by 5 gives = 4 . 26. If a man can reap of an acre in 72 GREENLEAF's.
... a bushel ? NOTE . Dividing the denominator by any number affects the value of a fraction the same as multiplying the numerator . The denominator of divided by 5 gives = 4 . 26. If a man can reap of an acre in 72 GREENLEAF's.
Σελίδα 73
... multiply a fraction by a whole number ? 35. How many cords of wood , at $ 5 a cord , will pay for 8 barrels of flour , at $ 10ğ a barrel ? 36. How many loads of hay , at $ 11 a load , will pay for 5 yards of cloth , at $ 4 a yard , and ...
... multiply a fraction by a whole number ? 35. How many cords of wood , at $ 5 a cord , will pay for 8 barrels of flour , at $ 10ğ a barrel ? 36. How many loads of hay , at $ 11 a load , will pay for 5 yards of cloth , at $ 4 a yard , and ...
Σελίδα 79
... Multiplying both the nu- merator and denominator by the same number , does not alter the value of a fraction . 19. Reduce and to a common denominator . 20. Reduce , , and to a common denomi- nator . 21. Change and 22. Change and to a ...
... Multiplying both the nu- merator and denominator by the same number , does not alter the value of a fraction . 19. Reduce and to a common denominator . 20. Reduce , , and to a common denomi- nator . 21. Change and 22. Change and to a ...
Σελίδα 80
... multiplying or dividing both the nu- merator and denominator by the same number alter the value of a fraction ? 52. What number added to 3 of 31 will make 25 ? 53. What number taken from 2 of 26 will leave 161 ? 54. If you should sell ...
... multiplying or dividing both the nu- merator and denominator by the same number alter the value of a fraction ? 52. What number added to 3 of 31 will make 25 ? 53. What number taken from 2 of 26 will leave 161 ? 54. If you should sell ...
Άλλες εκδόσεις - Προβολή όλων
Mental Arithmetic, Upon the Inductive Plan: Designed for Primary and ... Benjamin Greenleaf Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2016 |
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.