Mental Arithmetic, Or First Lessons in Numbers, for Children

Ivison & Phinney, 1854 - 120 páginas

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Contenido

 Sección 1 2 Sección 2 9 Sección 3 25 Sección 4 41
 Sección 5 56 Sección 6 84 Sección 7 104

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Página 106 - is used by apothecaries and physicians in mixing medicines. 20 grains (gr.) make 1 scruple, marked sc., or 3. 3 scruples " 1 dram, " dr., or 3 . 8 drams " 1 ounce, " oz., or §. 12 ounces " 1 pound,
Página 47 - There are eight rows of trees in an orchard, and seven trees in a row : how many trees are there in the orchard ? 8.
Página 111 - Thirty days hath September, April, June, and November ; February twenty-eight alone, All the rest have thirty-one ; Except in Leap year, then is the time, When February has twenty-nine.
Página 105 - Weight is used in weighing gold, silver, jewels, liquors, &c., and is generally adopted in philosophical experiments. 24 grains (gr.) make 1 pennyweight, marked pwt. 20 pennyweights " 1 ounce " oz. 12 ounces " 1 pound,
Página 102 - November ? 2 men do a piece of work in 30 days ; how long will it take...
Página 112 - Circular Measure is applied to the divisions of the circle, and is used in reckoning latitude and longitude, and the motion of the heavenly bodies. 60 seconds (") make 1 minute, marked ' 60 minutes " 1 degree, " ° 30 degrees " 1 sign, " s. . ' 12 signs, or 360° " 1 circle,
Página 105 - Weight is used in weighing groceries ana all coarse articles ; as, sugar, tea, coffee, butter, cheese, flour, hay; &c., and all metals except gold and silver. 16 drams (dr.) make 1 ounce, marked oz. 16 ounces " 1 pound, " Ib. 25 pounds " 1 quarter, " qr. 4 quarters, or 100 Ibs. " 1 hundred weight, " cwt. 20 hundred weight " 1 ton,
Página 109 - TABLE. 2 pints pt. make 1 quart, marked qt. 8 quarts - 1 peck, - pk. 4 pecks - 1 bushel, - bu.
Página 30 - ... lemon ? 2. A man having bought eight yards of cloth, used five yards to make a suit of clothes: how many yards had he left? 3. Frank has seven marbles, and John has five : how many more marbles has Frank than John ? 4. A man bought a cow for ten dollars, and gave a barrel of flour worth five dollars, and paid the rest in money : how much money did he pay ? 5. If a bushel of wheat costs nine shillings, and a bushel of corn five shillings, what is the difference in their price ? 6. A man bought...
Página 104 - Britain. 4 farthings (qr. or far.") make 1 penny, marked d. 12 pence " 1 shilling, " s. 20 shillings " 1 pound, or sovereign, £. 21 shillings