September 2015 archive

Sep 25

1+2+3+…. infinity = -1/12

So my favorite fact in mathematics is the picture that follows.  If you add all the counting number to infinity you arrive at an answer of -1/12!!! That math works.  Watch the video below for more information.

Sep 18

Link to page for Errata in the Number Sense Workbook

http://mathninja.org/number-sense-workbook-errata/

Sep 04

MathCounts Answers

[form form-13]