A Mental Arithmetic, Upon the Inductive PlanR.S. Davis & Company, 1860 - 156 σελίδες |
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Σελίδα 11
... Nine and three are how many ? 16. Nine and four are how many ? 17. Eight and two are how many ? 18. Five and seven are how many 19. One and eight are how many ? 20. Two and two are how many ? 21. Eight and six are how many ? 22. Two and ...
... Nine and three are how many ? 16. Nine and four are how many ? 17. Eight and two are how many ? 18. Five and seven are how many 19. One and eight are how many ? 20. Two and two are how many ? 21. Eight and six are how many ? 22. Two and ...
Σελίδα 12
... nine and seven ? 38. How many are nine and six ? LESSON V. 1. John has 3 marbles , Samuel has 5 , and Jacob has 4 ; how many have they all ? 2. Gave 3 cents to Susan , 4 to Emily , and 2 to Ann ; how many cents were given to them all ...
... nine and seven ? 38. How many are nine and six ? LESSON V. 1. John has 3 marbles , Samuel has 5 , and Jacob has 4 ; how many have they all ? 2. Gave 3 cents to Susan , 4 to Emily , and 2 to Ann ; how many cents were given to them all ...
Σελίδα 23
... nine , less twelve , are how many ? 23. Forty - one , and six , and three , and nine , less eleven , are how many ? 24. Sixty - four , and four , and six , and one , less fifteen , are how many ? 25. Nineteen , and eleven , and seven ...
... nine , less twelve , are how many ? 23. Forty - one , and six , and three , and nine , less eleven , are how many ? 24. Sixty - four , and four , and six , and one , less fifteen , are how many ? 25. Nineteen , and eleven , and seven ...
Σελίδα 27
... Nine times three are how many ? 22. Two times ten are how many ? 23. Three times eight are how many ? 24. Four times nine are how many ? 25. Five times seven are how many ? 26. Six times two are how many ? 27. Seven times eight are how ...
... Nine times three are how many ? 22. Two times ten are how many ? 23. Three times eight are how many ? 24. Four times nine are how many ? 25. Five times seven are how many ? 26. Six times two are how many ? 27. Seven times eight are how ...
Σελίδα 28
... nine are how many ? LESSON XIII . 1. At 9 dollars apiece , what will 8 ploughs cost ? 2. If 5 men can reap a field in 10 days , how long will it take one man to reap it ? 3. James bought 3 oranges , at 5 cents each , and 6 lemons , at 2 ...
... nine are how many ? LESSON XIII . 1. At 9 dollars apiece , what will 8 ploughs cost ? 2. If 5 men can reap a field in 10 days , how long will it take one man to reap it ? 3. James bought 3 oranges , at 5 cents each , and 6 lemons , at 2 ...
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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.