A Mental Arithmetic Upon the Inductive Plan: Being an Advanced Intellectual Course, Designed for Schools and AcademiesRobert S. Davis & Company, 1858 - 154 σελίδες |
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Σελίδα 19
... gain ? 32. Sold a lot of wood for 20 dollars , and re- ceived in payment some cloth worth 7 dollars ; how much was still due ? 33. Bought a wagon for 28 dollars , and sold it for 40 dollars ; how much was gained by the bar- gain ? 34 ...
... gain ? 32. Sold a lot of wood for 20 dollars , and re- ceived in payment some cloth worth 7 dollars ; how much was still due ? 33. Bought a wagon for 28 dollars , and sold it for 40 dollars ; how much was gained by the bar- gain ? 34 ...
Σελίδα 23
... gain ? 20. George spent 19 cents for candy , and 21 cents for fruit ; how more would he have to spend to make 50 cents ? 21. Thirty - two , and eight , and five , less ten , are how many ? 22. Twenty - eight , and three , and nine ...
... gain ? 20. George spent 19 cents for candy , and 21 cents for fruit ; how more would he have to spend to make 50 cents ? 21. Thirty - two , and eight , and five , less ten , are how many ? 22. Twenty - eight , and three , and nine ...
Σελίδα 30
... gain 25 dollars ? 38. If a frog should be 12 days in getting out of a well , by leaping up 12 feet every morning , and falling back 4 feet every evening , how deep is the well ? 39. How many are 5 times 16 , plus 20 ? 4 times 25 , minus ...
... gain 25 dollars ? 38. If a frog should be 12 days in getting out of a well , by leaping up 12 feet every morning , and falling back 4 feet every evening , how deep is the well ? 39. How many are 5 times 16 , plus 20 ? 4 times 25 , minus ...
Σελίδα 37
... gains on the other 5 miles an hour , in how many hours will they be together ? 6. If a man earns 8 dollars a week , how long will it take him to earn 48 dollars ? 64 dollars ? 7. How many cloaks , containing 9 yards , can be made from ...
... gains on the other 5 miles an hour , in how many hours will they be together ? 6. If a man earns 8 dollars a week , how long will it take him to earn 48 dollars ? 64 dollars ? 7. How many cloaks , containing 9 yards , can be made from ...
Σελίδα 41
... gain ? 34. How much butter , at 20 cents a pound , must be given for 8 yards of calico , at 15 cents a yard ? 35. Bought 6 barrels of pork for 120 dollars ; at how much a barrel must it be sold to gain 2 dollars a barrel ? 36. Bought 15 ...
... gain ? 34. How much butter , at 20 cents a pound , must be given for 8 yards of calico , at 15 cents a yard ? 35. Bought 6 barrels of pork for 120 dollars ; at how much a barrel must it be sold to gain 2 dollars a barrel ? 36. Bought 15 ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
12 cents 12 days 12 dollars 20 days 20 per cent 50 cents 9 cents 9 dollars acres amount of $200 barrel of flour bought boys bushel cost bushels of corn bushels of wheat cents a dozen cents a pound cents a quart cents a yard cents apiece cistern contained cords of wood cows decimal decimal fraction dimes dollar a bushel dollars a yard earn eight equal factors fifths fourths fraction furlongs gain $6 gallons gave Harry Hubbard hogshead hundred hundred-weight improper fraction interest of $100 John less LESSON lowest terms MENTAL ARITHMETIC miles an hour molasses months and 20 Multiply NOTE oranges ounces paid pecks pence pennyweights pints pounds of butter pounds of sugar present worth quire rate per cent receive Reduce remainder sell sevenths sheep shillings sixths subtract tens third tons of hay weeks whole number yards of broadcloth yards of cloth
Δημοφιλή αποσπάσματα
Σελίδα 55 - DRY MEASURE 2 pints (pt.) = 1 quart (qt.) 8 quarts =1 peck (pk.) 4 pecks = 1 bushel (bu...
Σελίδα 115 - ... miles an hour, how far apart will they be at the end of 1 hour ? At the end of 2 hours ? 4 hours ? 10 hours ? Why ? 4.
Σελίδα 100 - Multiplication is the process of taking one number as many times as there are units in another number.
Σελίδα 52 - SQUARE MEASURE 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet = 1 square yard (sq. yd.) 30| square yards = 1 square rod (sq. rd.) 160 square rods = 1 acre (A.) 640 acres = 1 square mile (sq.
Σελίδα 108 - The Dividend is the number to be divided. The Divisor is the number by which we divide.
Σελίδα 47 - TABLE. 10 Mills (m.) = 1 Cent . . ct. 10 Cents = 1 Dime . . d. 10 Dimes = 1 Dollar . $. 10 Dollars = 1 Eagle . E.
Σελίδα 48 - 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 116 - 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 57 - TABLE. 12 units make 1 dozen. 12 dozen " 1 gross. 12 gross " 1 great gross. 20 units " 1 score. 24 sheets of paper " 1 quire. 20 quires " 1 ream. 56 pounds " 1 bushel of corn. 60 pounds " 1 bushel of wheat. 196 pounds " 1 barrel of flour. 200 pounds « { l bari;el, of beef, pork
Σελίδα 53 - TABLE. 1728 cubic inches (cu. in.) make 1 cubic foot, ...... cu. ft. 27 cubic feet