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Surprising Number Patterns I by suleiman16(m): 7:03am On Jun 20, 2010 |
There are times when the charm of mathematics lies in the surprising nature of its number system. There are not many words needed to demonstrate this charm. It is obvious from the patterns attained. Look, enjoy, and spread these amazing properties to your students. Let them appreciate the patterns and, if possible, try to look for an “explanation” for this. Most important is that the students can get an appreciation for the beauty in these number patterns. NB: denote multiplication sign 1 1 = 1 11 11 = 121 111 111 = 12321 1111 1111 = 1234321 11111 11111 = 123454321 111111 111111 = 12345654321 1111111 1111111 = 1234567654321 11111111 11111111 = 123456787654321 111111111 111111111 = 12345678987654321 The Beauty in Numbers 3 1 8 + 1 = 9 12 8 + 2 = 98 123 8 + 3 = 987 1234 8 + 4 = 9876 12345 8 + 5 = 98765 123456 8 + 6 = 987654 1234567 8 + 7 = 9876543 12345678 8 + 8 = 98765432 123456789 8 + 9 = 987654321 Notice (below) how various products of 76,923 yield numbers in the same order but with a different starting point. Here the first digit of the product goes to the end of the number to form the next product. Otherwise, the order of the digits is intact. 76923 1 = 076923 76923 10 = 769230 76923 9 = 692307 76923 12 = 923076 76923 3 = 230769 76923 4 = 307692 Notice (below) how various products of 76,923 yield different numbers from those above, yet again, in the same order but with a different starting point. Again, the first digit of the product goes to the end of the number to form the next product. Otherwise, the order of the digits is intact. 76923 2 = 153846 76923 7 = 538461 76923 5 = 384615 76923 11 = 846153 76923 6 = 461538 76923 8 = 615384 Another peculiar number is 142,857. When it is multiplied by the numbers 2 through 8, the results are astonishing. Consider the following products and describe the peculiarity. 4 Math Wonders |
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