It has been long thought that one of the characteristics that makes humans unique is our ability to learn and manipulate symbols for communication. However, this notion is starting to slowly unravel.

In the Internet times, most learners will prefer online courses and practices to expand their mathematics knowledge, so math symbols and equations in online quizzes would be an essential part for ...

You all know the score. A train leaves one city travelling at 35 miles per hour and another races toward it at 25 miles an hour from a city 60 miles away. How long do they take to meet in the middle?