Two missiles speed directly toward each other, one at 9,000 miles per hour and the other at 21,000 miles per hour. They start ...

(And adults, of course!) These math puzzles test your brain and critical-thinking skills and provide some constructive, ...

Two missiles speed directly toward each other, one at 9,000 miles per hour and the other at 21,000 miles per hour. They start 1,317 miles apart. Without using pencil and paper, calculate how far ...

Incorporating daily puzzle games into a child's routine can dramatically improve their mathematical fluency. This method not ...

Experience math in a whole new way. We'll play fun and challenging problem-solving games and puzzles from around the world, including Ancient China and Egypt, Europe, Asia, Africa and the Americas. We ...