We like to think that we're pretty good at math, especially after years of schooling. But every once in a while, a simple third-grade math problem manages to trip us up and make us question our ...

BRAINERD, Minn. -- Consider this math problem: Find the square root of 49, double it, minus 5, square it, subtract 1, divide by 4, cut in half, cut in half, subtract 1, divide by 2, cut in half, cut ...

Here's the thing about math that nobody tells you: it's less about memorizing formulas and more about knowing which tools to ...