Get out your timer and number two pencil to see if your arithmetic skills are still sharp.

Add Yahoo as a preferred source to see more of our stories on Google. Life gets busy, and sometimes those basic math skills from school days get a little rusty. Whether you're budgeting, measuring for ...

Add Yahoo as a preferred source to see more of our stories on Google. We like to think that we're pretty good at math, especially after years of schooling. But every once in a while, a simple ...

The question goes: "A bat and a ball cost $1.10 in total. The bat costs $1.00 more than the ball. How much does the ball cost?" Is your knee-jerk response that the ball costs ten cents? That is a ...

At first glance, the problem seems ridiculously simple. And yet experts have been searching for a solution in vain for decades. According to mathematician Jeffrey Lagarias, number theorist Shizuo ...

Among high school students and adults, girls and women are much more likely to use traditional, step-by-step algorithms to solve basic math problems – such as lining up numbers to add, starting with ...