this is nuts... the husband and I are disagreeing on how to workt his out for the kiddo. How would you work out this problem? Obviously we know she spent 10 dollars, but we cannot agree on how to come ...

(ABC News)--Police across the country are used to solving puzzles, but one Ohio police department recently got a plea for help from a local girl seeking to solve a puzzle of a more mathematical bent.

Richard Rusczyk, founder of Art of Problem Solving, has a vision for bringing “joyous, beautiful math” — and problem-solving — to classrooms everywhere. When Richard Rusczyk became interested in math ...