The 66 square cards come in 6 suits, each of a different color and configuration, containing the numbers 0 to 10. The purple cards have numerals, but the other five suits have dots in varying ...

The card game Spot It! has become one of the most popular family games in the country, but the secret to how the game works has its roots in the logic puzzles of 19th century mathematicians. Blue ...

Young students around the world struggle to memorize multiplication tables, but the effort pays off. Cognitive scientists say that learning 6 x 7 and 8 x 9 by heart frees up the brain’s working memory ...