Add Yahoo as a preferred source to see more of our stories on Google. Attendees hold U.S. flags and an "America 250" sign during an event with President Trump at the Iowa State Fairgrounds on July 3, ...

In addition to humans, some species of primates and birds have demonstrated under experimental conditions their ability to manipulate quantities in tasks that require combining or separating them, in ...

The biggest ever group stage at a World Cup is over - and the tournament bracket has been settled all the way to the final. After 72 games, we now know which of the 48 teams participating have made it ...

The World Cup has reached the knockout rounds, where you win or you go home. Every player, every team, every fan feels the highest level of pressure when everything is on the line. The drama is ...

Take a squiz at the ABC's New Quiz topic page and see if you're a whiz at our previous quizzes.

Nasdaq announced that Elon Musk’s SpaceX would join the Nasdaq-100 index. Assuming the company meets the exchange’s requirements, index-tracking funds — like the popular Invesco QQQ Trust (QQQ) — can ...

Sign up for Staying Focused, our newsletter keeping readers up to speed on New York politics. New York school districts will soon begin revamping math instruction ...

We know units in math are what make the numbers truly mean something. Without a unit, they’re just symbols we manipulate. While I love manipulating numbers and looking for patterns, students don’t ...