Mathematicians love a good puzzle. Even something as abstract as multiplying matrices (two-dimensional tables of numbers) can feel like a game when you try to find the most efficient way to do it.

A recent paper set the fastest record for multiplying two matrices. But it also marks the end of the line for a method researchers have relied on for decades to make improvements. For computer ...

Fourth grade math doesn’t have to be worksheets and groans — it can be full of games, real-world challenges, and creative projects that spark curiosity. From multiplication bingo to problem-solving ...