In another channel called 2d7182818, he/she has proposed six methods, concerning a math puzzle of changing 2718 2818 to 2009 in a mathematical way.
It took me 9 minutes 33 seconds to come up with the 7th method and so I’d like to share with others.
Duration : 0:3:13
addthis_url = ‘http%3A%2F%2Fwww.amusingmathpuzzles.com%2Fmath-puzzles%2Fre-2718-2818-to-2009′;
[...]
I’ve tried to relate a number of 9’s to some meaningful number, such as the number of this year, 2009. I intend to let people appreciate the very simple tool of mathematics, which can show their myriad of changes of use. This problem is only a vehicle to give people the taste of the skill [...]
http://RightBrainMath.com Great visual patterns and overviews of how numbers work from a right brain perspective. Tom Biesanz (Mister Numbers) shows how the patterns look and how they relate to families of factor numbers.
Duration : 0:5:43
addthis_url = ‘http%3A%2F%2Fwww.amusingmathpuzzles.com%2Fmath-is-fun%2Fright-brain-math-fun-visual-patterns-overviews-in-the-times-table’;
addthis_title = ‘Right+Brain+Math%3A+Fun+Visual+Patterns+%26amp%3B+overviews+in+the+Times+Table’;
addthis_pub = ”;
Technorati Tags: [...]
Recent Comments