1946: The United States Army holds a contest pitting a Japanese abacus user against a soldier using an electric calculator. In four out of five rounds, the abacus wins. The soroban or Japanese abacus ...

Ever dreamt of solving math problems in your head with the speed of a calculator? Mental math might seem challenging, but it's a skill attainable through the right tools and techniques. The abacus, an ...

Now that digital learning is the way of the future, children and students are increasingly using online abacus platforms to expand their skill sets. Some kids have a natural aptitude for math and ...

Best Websites and Resources to Learn the Abacus at Home: Learning the Abacus at home is an amazing way to improve the concentration of children of their age. With the availability of online resources, ...

FORT LEE — For 10 seconds, a series of 50 random three-digit numbers flashed on the screen. After another second, abacus master Jeonghee Lee announced she'd finished the mental addition, correctly ...