A family has been arguing over the answer to a simple maths question, sparking a heated debate online once their responses and reasonings for their answers were revealed ...

What do the integers have in common with the symmetries of a triangle? In the 19th century, mathematicians invented groups as an answer to this question. Mathematics started with numbers — clear, ...

A brainteaser asking 'how much did I earn' after buying and selling a cow twice has sparked fierce debate in one family's ...

This story is part of a series reported by AL.com, The Associated Press, The Christian Science Monitor, The Dallas Morning News, The Hechinger Report, Idaho Education News, The Post and Courier in ...

The original version of this story appeared in Quanta Magazine. Mathematics started with numbers—clear, concrete, intuitive. Over the last two centuries, however, it has become a far more abstract ...