At a 20-student class held from around 4 p.m. most of the kids ... the abacus became a compulsory subject at elementary schools in Japan in 1935. Today, soroban lessons are included in math ...

A four-year-old girl named Siyah from Tamil Nadu has gone viral for her exceptional math skills, solving 59 sums in 15 ...

It's the only national abacus competition for students who are blind or have low vision, and encourages the use of mental math and abacus skills. The competition is broken down into five ...