Elementary Arithmetic, Oral and WrittenA.S. Barnes, 1878 - 232 σελίδες |
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Σελίδα 11
... shows how many hundreds we have written . If we use 2 instead of 1 in the third place , we have 200 , ( two hundred ) . If we use 3 , we have 300 ; if 4 , 400 , and so on . Write the numbers between 30 and 40 : Thus , 31 , 32 , 33 , 34 ...
... shows how many hundreds we have written . If we use 2 instead of 1 in the third place , we have 200 , ( two hundred ) . If we use 3 , we have 300 ; if 4 , 400 , and so on . Write the numbers between 30 and 40 : Thus , 31 , 32 , 33 , 34 ...
Σελίδα 21
... shows how numbers are expressed by these seven letters . TABLE . • • • I. 21 XXI . II . 22 XXII . • • III . 23 · • XXIII . IV . 24 XXIV . V. 25 XXV . • VI . • 26 XXVI . • • • VII . 27 • XXVII . • VIII . 28 · XXVIII . • IX . 29 • • • X ...
... shows how numbers are expressed by these seven letters . TABLE . • • • I. 21 XXI . II . 22 XXII . • • III . 23 · • XXIII . IV . 24 XXIV . V. 25 XXV . • VI . • 26 XXVI . • • • VII . 27 • XXVII . • VIII . 28 · XXVIII . • IX . 29 • • • X ...
Σελίδα 27
... show its simple value . Write 2 so as to denote 2 tens ; to denote 2 hundreds . How do the local values increase ? Places of figures and orders of units are counted from right to left , but numbers are read from left to right . EXAMPLES ...
... show its simple value . Write 2 so as to denote 2 tens ; to denote 2 hundreds . How do the local values increase ? Places of figures and orders of units are counted from right to left , but numbers are read from left to right . EXAMPLES ...
Σελίδα 35
... shows that they are to be added ; thus 6 + 3 + 2 are 11 , means that the sum of six and three and two is equal to eleven . In place of the word are , the sign is used . It is called the sign of equality , and is read equals or equal to ...
... shows that they are to be added ; thus 6 + 3 + 2 are 11 , means that the sum of six and three and two is equal to eleven . In place of the word are , the sign is used . It is called the sign of equality , and is read equals or equal to ...
Σελίδα 44
... show how it is used . Give the rule for writing numbers in addition . Give the rule for add- ing and writing the results . How do you prove addition ? What is an equation ? What are the members of an equation ? What numbers can be added ...
... show how it is used . Give the rule for writing numbers in addition . Give the rule for add- ing and writing the results . How do you prove addition ? What is an equation ? What are the members of an equation ? What numbers can be added ...
Συχνά εμφανιζόμενοι όροι και φράσεις
abstract number acres annex apples bers bought boys bushels called ciphers column common denominator common fractions complex fraction composite number COMPOUND NUMBERS currency decimal fraction decimal point decimeters denominate number dimes discount Divide dividend dollars equal EXAMPLES FOR WRITTEN EXERCISES FOR ORAL EXPLANATION.-We expressed feet Find the cost Find the interest Find the sum following numbers following RULE fractional unit gallon Give the rule greatest common divisor hence horses hundred hundredths ILLUSTRATION improper fraction integral least common multiple leaves marbles meters method Metric system minuend mixed number months multiplicand notation number of things operation of finding pears percentage primary unit prime factors proper fraction quarts quotient Recite the table remainder sheep shillings simple fraction simple numbers sold square subtract subtrahend tens thousand U. S. dollars whole number Write the number writing numbers yards
Δημοφιλή αποσπάσματα
Σελίδα 178 - A Circle is a plane figure bounded by a curved line every point of which is equally distant from a point within called the center.
Σελίδα 173 - TIME 60 seconds (sec.) = 1 minute (min.) 60 minutes = 1 hour (hr.) 24 hours = 1 day (da.) 7 days = 1 week (wk.) 365 days = 1 common year (yr.) 366 days = 1 leap year About 30 days = 1 month (mo.) 12 months = 1 year VALUE 10 cents (ct.
Σελίδα 178 - LIQUID MEASURE 4 gills (gi.) = 1 pint (pt.) 2 pints = 1 quart (qt...
Σελίδα 178 - DRY MEASURE 2 pints (pt.) = 1 quart (qt.) 8 quarts = 1 peck (pk.) 4 pecks = 1 bushel (bu...
Σελίδα 123 - Multiply the whole number by the numerator of the fraction, and divide the product by the denominator.
Σελίδα 155 - TABLE. 4 farthings (far. or qr.) make 1 penny d. 12 pence " 1 shilling, s. 20 shillings " 1 pound or sovereign . . £ or sov.
Σελίδα 93 - Multiplying or dividing both Dividend and Divisor by the same number, does not change the Quotient.
Σελίδα 144 - To multiply a decimal by 10, 100, 1000, &c., remove the decimal point as many places to the right as there are ciphers in the multiplier ; and if there be not places enough in the number, annex ciphers.
Σελίδα 176 - 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 157 - Measures of Length. 10 millimeters (mm.) 1 centimeter (cm.) 10 centimeters 1 decimeter (dm.) 10 decimeters 1 meter (m.) 10 meters 1 dekameter (Dm.) 10 dekameters 1 hectometer (Hm.) 10 hectometers 1 kilometer (Km.) 10 kilometers 1 myriameter (Mm.) 1181.