Lippincott's Elementary Arithmetic: Embracing the Science and Practical Applications of NumbersJ. B. Lippincott Company, 1899 - 281 σελίδες |
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Σελίδα 9
... combination from that sum . Teach numbers , not figures . Use objects in your explanations . This table should be placed upon the board and used for daily drills . LESSON X. Sign of Addition . 1. When we want ELEMENTARY ARITHMETIC 9.
... combination from that sum . Teach numbers , not figures . Use objects in your explanations . This table should be placed upon the board and used for daily drills . LESSON X. Sign of Addition . 1. When we want ELEMENTARY ARITHMETIC 9.
Σελίδα 55
... Explanation . Since there are three periods , -millions , thousands , units , -we write three dots for each to indicate the number of places to be filled . We place 36 in the third period , 29 in the second , and 50 in the first . The ...
... Explanation . Since there are three periods , -millions , thousands , units , -we write three dots for each to indicate the number of places to be filled . We place 36 in the third period , 29 in the second , and 50 in the first . The ...
Σελίδα 69
... Explanation . Explain , speaking thus : " For convenience , we write the numbers in a column . We then add thus : 7+ 8 = 15 ; 15 + 6 = 21 ; 21 + 3 = 24 , the sum . " Process . 3 6 8 7 24 sum = To prove the correctness of the result , we ...
... Explanation . Explain , speaking thus : " For convenience , we write the numbers in a column . We then add thus : 7+ 8 = 15 ; 15 + 6 = 21 ; 21 + 3 = 24 , the sum . " Process . 3 6 8 7 24 sum = To prove the correctness of the result , we ...
Σελίδα 74
... Explanation . Explain , speaking thus : " Since the numbers express the same kind of thing , they are like numbers , and their sum can be found . In accordance with the same principle , we write units of the same order in the same ...
... Explanation . Explain , speaking thus : " Since the numbers express the same kind of thing , they are like numbers , and their sum can be found . In accordance with the same principle , we write units of the same order in the same ...
Σελίδα 84
... Explanation . Since the unit of the numbers is simply one with- out name , the numbers are like and their difference may be found . We write units of the same order in the same column , and , beginning on the right , say 8 units 7 tens ...
... Explanation . Since the unit of the numbers is simply one with- out name , the numbers are like and their difference may be found . We write units of the same order in the same column , and , beginning on the right , say 8 units 7 tens ...
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Lippincott's Elementary Arithmetic: Embracing the Science and Practical ... James Morgan Rawlins Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2016 |
Συχνά εμφανιζόμενοι όροι και φράσεις
50 cents 9 units abstract number acres Annexing apples Arabic numerals Avoirdupois barrels of flour bought bushels called cents a pound ciphers column containing decimal places decimal point DENOMINATE NUMBERS dimes divided dividend division dollars earn eight hundred Explanation factors feet Find the cost Find the sum Find the value Four hundred fourth fraction gallons Greatest Common Divisor Hence horses hundred is written hundredths improper fractions INDUCTIVE STEPS integer LESSON letter long ton lowest terms miles million minuend mixed numbers Multiplicand Multiply nine ORAL EXERCISES oranges paid pennyweight pints prime factors principle Process pupils quarts quotient Reduce remainder seven sheep six hundred sold stars subtract subtrahend tens tenths third thousand thousandths Three hundred tons worth WRITTEN EXERCISES WRITTEN PROBLEMS yards of cloth
Δημοφιλή αποσπάσματα
Σελίδα 226 - LIQUID MEASURE 4 gills (gi.) = 1 pint (pt.) 2 pints — 1 quart (qt...
Σελίδα 224 - 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 231 - Thirty days hath September, April, June, and November ; All the rest have thirty-one, Except the second month alone, Which has but twenty-eight, in fine, Till leap year gives it twenty-nine.
Σελίδα 151 - Multiplying or dividing both terms of a fraction by the same number does not change the value of the fraction.
Σελίδα 227 - Dry Measure 2 pints (pt.) =1 quart (qt.) 8 quarts = 1 peck (pk.) 4 pecks = 1 bushel (bu.) 2150.42 cu.
Σελίδα 226 - CUBIC MEASURE 1728 cubic inches (cu. in.) = 1 cubic foot (cu. ft.) 27 cubic feet = 1 cubic yard (cu. yd.) 128 cubic feet = 1 cord (cd...
Σελίδα 116 - The dividend is the number to be divided. The divisor is the number by which we divide.
Σελίδα 223 - Measures of length are used in measuring lines or distances. TABLE. 12 inches (in.) = 1 foot (ft.). 3 feet = 1 yard (yd.). 5J yards, or 16| feet = 1 rod (rd.).
Σελίδα 230 - Weight is used by apothecaries and physicians in weighing medicines for prescriptions, but medicines are bought and sold by avoirdupois weight. TABLE. 20 Grains (gr.) = 1 Scruple . . . sc., or 3 3 Scruples = 1 Dram . . . . dr., or 3 8 Drams = 1 Ounce . . . oz., or 5 12 Ounces = 1 Pound . . . Ib. , or Ib Apothecaries' Liquid Measure is used in compounding and measuring liquid medicines.
Σελίδα 151 - The Greatest Common Divisor of two or more numbers is the greatest number that will exactly divide each of them. Thu4, 18 is the greatest, common divisor of 36 and 54, since it is the greatest number that will divide each of them without a remainder.