Abstract: The term CryptArithm: it is a mathematical puzzle which involves the replacement of digits with alphabets, symbols and letters. The art and science of solving CryptArithms is known as ...

Welcome to The Riddler. Every week, I offer up problems related to the things we hold dear around here: math, logic and probability. Two puzzles are presented each week: the Riddler Express for those ...

Welcome to The Riddler. Every week, I offer up problems related to the things we hold dear around here: math, logic and probability. Two puzzles are presented each week: the Riddler Express for those ...

Playing with arithmetic can lead us to unexpected and profound discoveries that point toward deeper mathematics and sometimes even deeper science. We solved our last Insights puzzle by performing some ...

Twelve “mathletes” from Springfield Plains Elementary won national awards of excellence at the Math Olympiad program. Thirty-eight SPE students were among the nearly 160,000 students worldwide to ...

I have shared puzzles based on arithmetic in previous posts. They generated quite a bit of correspondence, acknowledging both their challenging nature and the possibility of different solutions to the ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...