The American Elementary Arithmetic, Μέρος 1

Εξώφυλλο
J.P. Jewett & Company, 1858

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Σελίδα 78 - It shows that the number before it is to be divided by the number after it. Thus 6 -i- 2 = 3 is read, 6 divided by 2 is equal to 3.
Σελίδα 6 - L, fifty ; C, one hundred; D, five hundred; M, one thousand.
Σελίδα 50 - 14 2 " 16 2 " 18 2 " 20 2 " 22 2 " 24 3 " 21 3 " 24 3 " 27 3 " 30 3 " 33 3 " 36 4 " 28 4 « 32 4 " 36 4 " 40 4 « 44 4 " 48 5 " 35 5 " 40 5 " 45 5 " 50 5 " 55 5
Σελίδα 96 - In 4079160 minutes, how many years-? CIRCULAR MEASURE, OR MOTION. Circular measure is used in reckoning latitude and longitude ; also in computing the revolution of the earth and other planets round the sun. The denominations are circles, signs, degrees, minutes, and seconds. TABLE. 60 seconds (") - make - 1 minute, - marked - ' 60 minutes ----- 1 degree, - - - - - ° 30 degrees ,----- 1 sign, ------ s.
Σελίδα 77 - When there are ciphers between the significant figures of the multiplier, we may omit the ciphers, multiplying by the significant figures only, placing the first figure, of each product directly under the figure by which we multiply. EXAMPLES FOR PRACTICE.
Σελίδα 91 - AVOIRDUPOIS WEIGHT. The denominations of Avoirdupois Weight are, the ton, T., the hundred-weight, cwt,, the quarter, qr. the pound, Ib., the ounce, oz., and the dram, dr.
Σελίδα 55 - Ans. $47. 28. There are 12 months in 1 year : how many years, are there in 540 months? Ans. 45 yrs.
Σελίδα 65 - If 8 men can do a piece of work in 5 days, in how many days would they do a piece of work 4 times as large ? 22.
Σελίδα 61 - ... acres, and in Hale's farm 264 acres. How many acres are there in both farms? 2. In one town there are 450 voters, and in another 673. How many more in one than in the other? 3. A miller ground 315 bushels of grain in one day, and 451 bushels in the next. How many bushels did he grind in both days? 4. In one week there are 7 days; how many days are there in 52 weeks? 5. How many casks of 3 bushels each will be required to hold 561 bushels of potatoes ? 6. How much can a man earn in 45 weeks at...
Σελίδα 95 - Time 1 year = 365 days 1 year = 12 months 1 year = 52 weeks 1 week = 7 days 1 day = 24 hours 1 hour = 60 minutes 1 minute = 60 seconds...

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