This is a collection of math quizzes for those among you who want to see if you remember all the math you learned in elementary, middle, and high school. Not just one quiz, but many! Have fun, nerd. 1 ...

Duolingo, best known for its whimsical owl and language-learning app, is working on a new product to add to its growing suite: a math app, according to CEO Luis von Ahn. The co-founder mentioned the ...