Math and Disney come together in this Frozen-themed Abacus Junior, which comes with 50 vibrant beads for an entertaining and ...

The abacus is a computing device on which arithmetic calculations are performed by sliding counters (beads, pebbles, or flat discs) along rods, wires or lines. The instrument may have originated in ...

The 44th India National Level Brainobrain Abacus Competition, held at the Chennai Trade Centre on the 19th and 20th of ...