The Kingdom of Infinite Number: A Field GuideHenry Holt and Company, 15 сент. 2001 г. - Всего страниц: 398 Just as bird guides help watchers tell birds apart by their color, songs, and behavior, The Kingdom of Infinite Number is the perfect handbook for identifying numbers in their native habitat. Taking a field guide-like approach, it offers a fresh way of looking at individual numbers and the properties that make them unique, which are also the properties essential for mental computation. The result provides new insights into mathematical patterns and relationships and an increased appreciation for the sheer wonder of numbers. |
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... easily spot one of the smaller perfect squares, such as 25 or 49. But the adept birder identifies which warbler is singing in the woods and knows the profiles of all the birds of prey. Similarly, better number-watchers know that 10 is a ...
... easily in my head. In fact, I don't think I could have used the traditional way without resorting to paper and pencil ... easy for me to have divided $675 by 15 to get $45 if I were using the ordinary division algorithm. What is it that ...
... easily seen . With this mental tool , hard - wired into the brain , you can easily recognize the numbers 1 , 2 , and perhaps 3. Although the numbers are perceived along the number line , the brain seems to have no difficulty in ...
... easy problem 10 × 56 that has the same product. So the answer is 10 × 56 = 560. 8 Or you could have seen the same problem of 35 × 16 in a different light and collected the 2, 5, and 7 from the factors, to make 70. What is left are the ...
... easy to see two fours or even a five and three , however , and in this operation , all I need is number sense and a steady hand . But for nearly every operation with numbers greater than 10 or 12 I need to think of them as numerals - as ...
Содержание
Genera Integral and Rational Signed Numbers | |
Genus Rational | |
Genus Real NumberLine Numbers | |
Genus Complex AllInclusive Numbers | |
Kingdom Infinity | |
A Note on Taxonomy | |