After cracking the 'sum of cubes' puzzle for 42, mathematicians discover a new solution for 3.

Every so often its good to exercise your brain with a math problem or two that forces you to recall principles you learned decades prior. Can you solve 5+5x5+5 without a hitch?

From classrooms to kitchen tables, debates about math education are never far away. Should teachers drill multiplication ...

In his lively “Empire of the Sum,” Keith Houston looks at the best — and worst — years of the pocket calculator’s life.