The Normal Union Arithmetic: Designed as the Primary Part of a Shorter Course in Mental and Written Arithmetic, Μέρος 1Sower, Potts & Company, 1878 - 152 σελίδες |
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Σελίδα 3
... has given a large collection of problems for slate or blackboard exercises , to be used in connection with the exercises in mental arithmetic . 4. The author has omitted all representations of objects by ( iii ) PREFACE. ...
... has given a large collection of problems for slate or blackboard exercises , to be used in connection with the exercises in mental arithmetic . 4. The author has omitted all representations of objects by ( iii ) PREFACE. ...
Σελίδα 5
... blackboard during the recitation . The same problem may be given to the whole class , or each member may receive a differ- ent problem , as the teacher prefers ; the author thinks with beginners the first method is preferable . At first ...
... blackboard during the recitation . The same problem may be given to the whole class , or each member may receive a differ- ent problem , as the teacher prefers ; the author thinks with beginners the first method is preferable . At first ...
Σελίδα 6
... blackboard , after which they should be required to commit the tables to memory . The teacher may also show the pupils that any product in the table can be derived by adding the multiplier to the preceding product ; thus , since 6 times ...
... blackboard , after which they should be required to commit the tables to memory . The teacher may also show the pupils that any product in the table can be derived by adding the multiplier to the preceding product ; thus , since 6 times ...
Σελίδα 16
... blackboard , using the signs — and = . WRITTEN EXERCISES . 631 4 3 10 12 11 13 14 15 3 3 3 63 72 84 ༄ ། යයි 3 3 3 3 3 3 89985 From 5 7 9 8 Take 3 3 3 3 - From 57 Take 23 96 45 89 77 32 21 13 33 22 32 31 From 365 743 569 984 872 731 ...
... blackboard , using the signs — and = . WRITTEN EXERCISES . 631 4 3 10 12 11 13 14 15 3 3 3 63 72 84 ༄ ། යයි 3 3 3 3 3 3 89985 From 5 7 9 8 Take 3 3 3 3 - From 57 Take 23 96 45 89 77 32 21 13 33 22 32 31 From 365 743 569 984 872 731 ...
Σελίδα 17
... blackboard or slate , using the signs + and = . 8. Add by 4's from 4 to 16 ; from 1 to 13 ; from 2 to 14 ; from 3 to 15 . 4 2 4 WRITTEN EXERCISES . 451 +31 461 44 | 4 4 4 4 4 4 7 1 9 +81 10 12 11 43 41 14 431 423 444 45 36 72 66 54 562 ...
... blackboard or slate , using the signs + and = . 8. Add by 4's from 4 to 16 ; from 1 to 13 ; from 2 to 14 ; from 3 to 15 . 4 2 4 WRITTEN EXERCISES . 451 +31 461 44 | 4 4 4 4 4 4 7 1 9 +81 10 12 11 43 41 14 431 423 444 45 36 72 66 54 562 ...
Συχνά εμφανιζόμενοι όροι και φράσεις
12 cents 12 leaves ADDITION TABLE apples Arithmetic barrel birds bought boys bushels called cents a yard ciphers common fraction composite number contained count backward cows cubic decimal point denominator dimes Dividing for Quotients DIVISION TABLE dollars dozen drams drill the pupils DRY MEASURE eighths equal farthings feet fifths fourths frac gallons gave grains greatest common divisor horses cost hundred hundredths hundredweight improper fraction inches least common multiple less LESSON marbles Mary MEASURE MENTAL EXERCISES miles minuend minus MULTIPLICATION TABLE NOTE.-The teacher OPERATION oranges ounces peaches pence pennyweights pints pounds prime factors quarts reading and writing Reduce remained rods roses RULE.-I sevenths sheep shillings simple numbers sixths slate or blackboard sold SOLUTION.-If SOLUTION.-Three subtraction table subtrahend symbols tenths thirds thousand trees TROY WEIGHT UNITED STATES MONEY write the numbers Write the subtraction writing numbers WRITTEN EXERCISES yards of cloth yards of muslin
Δημοφιλή αποσπάσματα
Σελίδα 107 - 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 140 - What is 1 ninth of 1 ? of 2? of 3 ? of 4 ? of 5 ? of 6 ? of 7 ? of 8? of 9 ? of 10 ? of- 11?
Σελίδα 121 - I. Annex ciphers to the numerator, and divide by the denominator. II. Point off as many decimal places in the quotient as there are ciphers used.
Σελίδα 138 - The Greatest Common Divisor of two or more numbers is the greatest number that will exactly divide each of them.
Σελίδα 111 - Multiplying or dividing both terms of a fraction by the same number does not change the value of the fraction.
Σελίδα 124 - Divide as in whole numbers, and point off as many figures for decimals in the quotient as the number of decimal places in the dividend exceeds the number in the divisor.
Σελίδα 138 - Divide the given number by any prime number greater than 1, that is an exact divisor, and the quotient, if composite, in the same manner ; and thus continue until the quotient is prime. The divisors and the last quotient will be the prime factors required.
Σελίδα 101 - Apothecaries' Weight 20 grains (gr.) = 1 scruple (3) 3 scruples = 1 dram (3) 8 drams = 1 ounce ( 3 ) 12 ounces = 1 pound...
Σελίδα 69 - Edwin lost 9 marbles, which is 3 fourths of what he had at first; how many had he at first? 6. Ten is 2 thirds of what number? SOLUTION. — If 2 thirds of some number is 10, 1 third of that number is 1 half of 10, which is 5, and 3 thirds, or the number, arc 3 times 5, or 15.