The Practical Arithmetic: Oral and WrittenAmerican Book, 1907 - 350 σελίδες |
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Σελίδα 3
... observation lead the author to a strictly topical arrangement of the subjects in this book . No effort whatever has been made to follow the lead of some recently published arithmetics and make the book an encyclopedia of geographical ...
... observation lead the author to a strictly topical arrangement of the subjects in this book . No effort whatever has been made to follow the lead of some recently published arithmetics and make the book an encyclopedia of geographical ...
Σελίδα 11
... Observe that any mixed decimal may be read as though it were integral by giving the name of the units denoted by the right- hand figure to the entire number ; thus , 21.8 is 218 tenths ; 5.36 is 536 hundredths ; 24.305 is 24305 ...
... Observe that any mixed decimal may be read as though it were integral by giving the name of the units denoted by the right- hand figure to the entire number ; thus , 21.8 is 218 tenths ; 5.36 is 536 hundredths ; 24.305 is 24305 ...
Σελίδα 12
... Observe that the units of any one order may be thought of as an equal number of tenths of one of the next higher order ; thus , in the number 324.576 , the 6 thousandths are 6 tenths of a hun- dredth ; the 7 hundredths are 7 tenths of a ...
... Observe that the units of any one order may be thought of as an equal number of tenths of one of the next higher order ; thus , in the number 324.576 , the 6 thousandths are 6 tenths of a hun- dredth ; the 7 hundredths are 7 tenths of a ...
Σελίδα 19
... Observe that in written problems in subtraction the subtrahend is usually written under the minuend , and the difference under the subtrahend ; and that , as in addition , the units of the same order are written in the same column . 2 ...
... Observe that in written problems in subtraction the subtrahend is usually written under the minuend , and the difference under the subtrahend ; and that , as in addition , the units of the same order are written in the same column . 2 ...
Σελίδα 20
... observing how many must be added to the smaller number to give a sum equal to the larger number . Thus , to find the differ- ence of 280 and 500 , it may be observed that 20 added to 280 makes 300 , and 200 added to 300 makes 500 ...
... observing how many must be added to the smaller number to give a sum equal to the larger number . Thus , to find the differ- ence of 280 and 500 , it may be observed that 20 added to 280 makes 300 , and 200 added to 300 makes 500 ...
Συχνά εμφανιζόμενοι όροι και φράσεις
12 rods acres altitude answer bicycle geared bought bushel centimeters chains Change circle circumference commission common fraction contained cord corn cube cubic centimeters cubic foot decimal point decimeters denominator diameter discount Divide dividend dollars equal exactly divisible excess of 9's EXPLANATION Express the ratio figure Find proceeds Find the amount Find the approximate Find the area Find the cost Find the interest Find the product Find the sum greatest common divisor HALL'S PRACT hundred hundredths improper fraction integral number larger number lowest terms Measure meters miles mixed number multiplicand NOTE number of feet oats Observe OPERATION paid perfect squares perimeter piece of land pound prime factors promise to pay pupil quotient right angles rods selling smaller number sold solid content specific gravity square root subtract tenths thousandths tons trapezoid triangle units value received weight wide
Δημοφιλή αποσπάσματα
Σελίδα 180 - TIME 60 seconds (sec.) = 1 minute (min.) 60 minutes =1 hour (hr.) 24...
Σελίδα 173 - LIQUID MEASURE 4 gills (gi.) = 1 pint (pt.) 2 pints = 1 quart (qt...
Σελίδα 190 - OF WEIGHT 10 milligrams (mg.) = 1 centigram (eg.) 10 centigrams = 1 decigram (dg.) 10 decigrams = 1 gram (g.) 10 grams = 1 dekagram (Dg...
Σελίδα 157 - 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 187 - MEASURE. 10 millimeters (mm.) = 1 centimeter (cm.) 10 centimeters = 1 decimeter (dm.) 10 decimeters = 1 meter (m.) 10 meters = 1 dekameter (Dm.) 10 dekameters = 1 hektometer (Hm.) 10 Hektometers = 1 kilometer (Km.) 10 kilometers = 1 myriameter (Mm.) 1 meter = 39.37 inches.
Σελίδα 89 - Multiplying or dividing both terms of a fraction by the same number does not change the value of the fraction.
Σελίδα 205 - The first and fourth terms of a proportion are called the extremes, and the second and third terms, the means. Thus, in the foregoing proportion, 8 and 3 are the extremes and 4 and 6 are the means.
Σελίδα 187 - Pupils must learn to think of quantity in metric units. 319. All units in the metric system of measures and weights are derived from the primary unit known as the meter. When the length of the primary unit of this system was determined it was supposed to be one ten-millionth of the distance from the equator to the pole. A pendulum that vibrates seconds is nearly one meter long.* In the names of the derived units of this system the prefix deka means 10; hekto means 100; kilo means 1000; myria means...
Σελίδα 135 - Six months after date for value received I promise to pay to the order of Merchants...
Σελίδα 190 - MEASURES OF WEIGHT 10 milligrams (mg.) = 1 centigram eg. 10 centigrams =1 decigram dg. 10 decigrams =1 gram g. 10 grams =1 decagram Dg. 10 decagrams =1 hectogram Hg. 10 hectograms = 1 kilogram Kg.