A Second Course in the New Mathematics |
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Σελίδα 10
Estimating is a short way a of obtaining an approximate answer . It is a commonsense check on accuracy and is often used by business men . Example 1. If John had to multiply 25 by 30 and obtained ...
Estimating is a short way a of obtaining an approximate answer . It is a commonsense check on accuracy and is often used by business men . Example 1. If John had to multiply 25 by 30 and obtained ...
Σελίδα 28
From the above statements we obtain the following axioms . 1. If equals are added to equals , the sums are equal . ( Addition axiom ) 2. If equals are subtracted from equals , the remainders are equal . ( Subtraction axiom ) 6 11 ...
From the above statements we obtain the following axioms . 1. If equals are added to equals , the sums are equal . ( Addition axiom ) 2. If equals are subtracted from equals , the remainders are equal . ( Subtraction axiom ) 6 11 ...
Σελίδα 38
We may add n and 2 n and obtain 3 n just as we would add 1 bu . and 4 bu . and obtain 5 bu . or as we would add 1 qt . and 6 qt . to obtain 7 qt . Thus 3 n + 5 n = 8 n ; 2 x + 3 x = 5 x ; 3 a + 5a + 7 a 15 a , etc.
We may add n and 2 n and obtain 3 n just as we would add 1 bu . and 4 bu . and obtain 5 bu . or as we would add 1 qt . and 6 qt . to obtain 7 qt . Thus 3 n + 5 n = 8 n ; 2 x + 3 x = 5 x ; 3 a + 5a + 7 a 15 a , etc.
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Άλλες εκδόσεις - Προβολή όλων
Second Course in the New Mathematics Edward Ira Edgerton,Perry Amherst Carpenter Προβολή αποσπασμάτων - 1958 |
Συχνά εμφανιζόμενοι όροι και φράσεις
acre added amount angle annual answer automobile average bank base bonds bought building called cents Change Chapter Committee compounded cost cubic decimal deposit difference discount distance Divide dollars draw earn equal equation Example feet feet long figures Find foot formula gain gallons give given graph Habit height hour inches income increase interest investment length less loss means measure meter miles minutes months Multiply obtain paid pounds Practice premium problems pupils ratio receive represent result savings score selling price shares Short-Cut side similar Skill sold Solution Solve square root Subtract Test third Trial triangle United volume week wide worth Write yards York
Πληροφορίες βιβλιογραφίας
| Τίτλος | A Second Course in the New Mathematics Junior high school mathematics Junior high school mathematics, ed. by J. M. Glass |
| Συγγραφείς | Edward Ira Edgerton, Perry Amherst Carpenter |
| Εκδότης | Allyn and Bacon, 1928 |
| Πρωτότυπο από | το Πανεπιστήμιο της Καλιφόρνια |
| Ψηφιοποιήθηκε στις | 17 Νοεμ. 2007 |
| Μέγεθος | 375 σελίδες |
| Εξαγωγή αναφοράς | BiBTeX EndNote RefMan |