A Mental Arithmetic, Upon the Inductive PlanR.S. Davis & Company, 1860 - 156 σελίδες |
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Σελίδα 33
... move at the rate of 12 miles an hour , how many hours will it require to move 96 miles ? 40. 3 heifers were bought for 48 dollars ; how much were they apiece ? 41. For 51 dollars how many acres of land can MENTAL ARITHMETIC . 33.
... move at the rate of 12 miles an hour , how many hours will it require to move 96 miles ? 40. 3 heifers were bought for 48 dollars ; how much were they apiece ? 41. For 51 dollars how many acres of land can MENTAL ARITHMETIC . 33.
Σελίδα 34
Benjamin Greenleaf. 41. For 51 dollars how many acres of land can be bought , at the rate of 17 dollars an acre ? 42. A school , consisting of 120 pupils , is di- vided into 10 equal classes ; how many pupils are there in each class ...
Benjamin Greenleaf. 41. For 51 dollars how many acres of land can be bought , at the rate of 17 dollars an acre ? 42. A school , consisting of 120 pupils , is di- vided into 10 equal classes ; how many pupils are there in each class ...
Σελίδα 50
... Acre , A. 66 1 Square mile , S. M. 640 Acres NOTE . kinds . - This measure is used in measuring surfaces of all 1. How many square feet in 1 square yard ? In 3 square yards ? In 7 square yards ? In 8 square yards ? In 9 square yards ? 2 ...
... Acre , A. 66 1 Square mile , S. M. 640 Acres NOTE . kinds . - This measure is used in measuring surfaces of all 1. How many square feet in 1 square yard ? In 3 square yards ? In 7 square yards ? In 8 square yards ? In 9 square yards ? 2 ...
Σελίδα 51
Benjamin Greenleaf. 5. How many roods in 2 acres ? In 6 acres ? In 10 acres ? 6. How many acres in 8 roods ? In 24 roods ? In 60 roods ? 7. How many acres in 1 square mile ? 8. How many rods in a field 12 rods long , and 9 rods wide ? 9 ...
Benjamin Greenleaf. 5. How many roods in 2 acres ? In 6 acres ? In 10 acres ? 6. How many acres in 8 roods ? In 24 roods ? In 60 roods ? 7. How many acres in 1 square mile ? 8. How many rods in a field 12 rods long , and 9 rods wide ? 9 ...
Σελίδα 69
... acre of land to one man , § to another , and to another ; how many acres were sold ? 4. ¿ + + + are how many times 1 ? 5. Edmund had 72 dollars , and his father gave him of a dollar more ; how many dollars then had he ? NOTE . + = - - 1 ...
... acre of land to one man , § to another , and to another ; how many acres were sold ? 4. ¿ + + + are how many times 1 ? 5. Edmund had 72 dollars , and his father gave him of a dollar more ; how many dollars then had he ? NOTE . + = - - 1 ...
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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.