Interesting Math!
Math triangle sums stumper all sides equal the same number using numbers 1 - 9 only once each? 4 2........3 9..................7 5........1........8.........6 Math square sums all sides equal the same number using numbers 1 - 9 only once each? top row: 4,3,8 2nd row: 9,5,1 bottom: 2,7,6 How can you make a math square sums all sides equal the same number using numbers 1-9 only once? 2 7 6 9 5 1 4 3 8 Use each number once 12345678 to equal 15? One answer to this is: (8 + 7) x ((6 - 5) x (4 - 3) x (2 - 1)) = 15 I got all of this is from Wiki Answers. Another interesting one is about numbers. I just cut and pasted this from this link . What's Special About This Number? If you know a distinctive fact about a number not listed here, please e-mail me. primes graphs digits sums of powers bases combinatorics powers/polygonal Fibonacci geometry repdigits algebra perfect/amicable pandigital matrices divisors games/puzzles 0 is the additive identity. 1 is the multipl...