Math Quiz: NYT Learning Network

Through Math for America, I am part of an on-going collaboration with the New York Times Learning Network.  My latest contribution, a Test Yourself quiz-question, can be found here:

http://learning.blogs.nytimes.com/2010/11/17/test-yourself-math-nov-17-2010/

This question was based on a new world record in computational speed set by a Chinese supercomputer.   We’ve officially fallen behind