A Mental Arithmetic, Upon the Inductive PlanR.S. Davis & Company, 1860 - 156 σελίδες |
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Σελίδα 4
... less , and denotes that the quantity on the right of it is to be subtracted from that on the left ; as 8-6 equals 2 . 4. The sign of multiplication , an inclined cross , X , is read times , or multiplied by , and denotes that the ...
... less , and denotes that the quantity on the right of it is to be subtracted from that on the left ; as 8-6 equals 2 . 4. The sign of multiplication , an inclined cross , X , is read times , or multiplied by , and denotes that the ...
Σελίδα 19
... gained by the bar- gain ? 34. 40 less 28 are how many ? 35. A man paid 14 dollars to one man , and 4 to another ; how much more did he pay to one than the other ? 36. From a vessel containing 40 gallons , 15 gal- MENTAL ARITHMETIC . 19.
... gained by the bar- gain ? 34. 40 less 28 are how many ? 35. A man paid 14 dollars to one man , and 4 to another ; how much more did he pay to one than the other ? 36. From a vessel containing 40 gallons , 15 gal- MENTAL ARITHMETIC . 19.
Σελίδα 20
... less 10. 11 less 11. 13 less 12. 12 less 14. 15 less ? 13. 14 less 6 are how many 3 are how many ? 15. 16 less 6 are how many ? 16. 19 less 9 are how many ? 17. 21 less 10 are how many ? 18. 25 less 10 are how many ? 19. 29 less 9 are ...
... less 10. 11 less 11. 13 less 12. 12 less 14. 15 less ? 13. 14 less 6 are how many 3 are how many ? 15. 16 less 6 are how many ? 16. 19 less 9 are how many ? 17. 21 less 10 are how many ? 18. 25 less 10 are how many ? 19. 29 less 9 are ...
Σελίδα 21
... less 8 are how many ? 21. 30 less 10 are how many ? 22. 42 less 10 are how many ? 23. 24 less 10 are how many ? 24. 30 less 15 are how many ? 25. 20 less 5 are how many ? 26. How many are 27. How many are 28. How many are 29. How many ...
... less 8 are how many ? 21. 30 less 10 are how many ? 22. 42 less 10 are how many ? 23. 24 less 10 are how many ? 24. 30 less 15 are how many ? 25. 20 less 5 are how many ? 26. How many are 27. How many are 28. How many are 29. How many ...
Σελίδα 22
... less than 46 is 25+ 10 ? 12. How much less than 58 is 31+ 19 ? 13. How much less than 45 is 59 - 19 ? 14. How much greater than 49 is 63 - 13 ? 15. How much greater than 63 is 87 — 22 ? 16. How much more than 40 + 13 is 60 ? 17. How ...
... less than 46 is 25+ 10 ? 12. How much less than 58 is 31+ 19 ? 13. How much less than 45 is 59 - 19 ? 14. How much greater than 49 is 63 - 13 ? 15. How much greater than 63 is 87 — 22 ? 16. How much more than 40 + 13 is 60 ? 17. How ...
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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.