Scientific American

How to Identify a Prime Number without a Computer

For years, a French mathematician searched for a proof that a gigantic number is prime. His method is still used 150 years ...
BBC

How do I multiply two-digit numbers more easily?

19 is only 1 away from 20, so you prefer to start by multiplying 20 times 5, which equals 100. Then we need to take away a squadron of 5, because there are actually only 19 squadrons, not 20. 100 take ...
BBC

Subtracting two-digit numbers

You can find the difference between two numbers in more than one way. You can count up from the smaller number to the larger number. Or, you can count back from the larger number to the smaller number ...
Talker on MSN

Study finds kids counting on fingers improves their math skills

Kids who count on their fingers between 4 and 6 years old have better addition skills by 7 than those who don’t use their ...
IEEE

Weighted two-valued digit-set encodings: unifying efficient hardware representation schemes for redundant number systems

Abstract: We introduce the notion of two-valued digit (twit) as a binary variable that can assume one of two different integer values. Posibits, or simply bits, in {0,1} and negabits in {-1,0}, ...
C&EN

Machine Learning, Molecular Docking, and Dynamics-Based Computational Identification of Potential Inhibitors against Lung Cancer

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