Know Abacus
Abacus is a wonderful mathematical instrument used for calculation. This app will help your children learn about Abacus, Numbers, Counting, Addition, ...
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Abacus Radio
ABACUS RADIO now provides over 340 channels of the best Music and Talk available in a variety of genres. Every ABACUS Radio channel features music tha...
Abacus Calculator
Added abacus ability to the Abacus Display Calculator.免費玩Abacus Calculator APP玩免費免費玩Abacus Calculator AppAbacus Calculator APP LOGOAbacus Calculator A...
AL Abacus
AL Abacus, used with the RightStart™ Mathematics program, now available on your android device! This abacus will teach, not calculate like the Japanes...
Abacus App
A simple abacus app supporting 6 types of abacus (soroban, suanpan, binary, Russian, school & rekenrek) as well as a variable number of rods on each a...
Abacus Supreme
Learn the Abacus and expand your brain power!The Soroban Abacus is a calculating tool in use for over 4,000 years. Abaci are often constructed as a ba...
Slavonic Abacus
The Slavonic Abacus is a brilliant teaching aid for pupils who are struggling to master basic mathematical skills. What makes it so special is the unu...
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Digital Abacus
Indian Abacus Mental Arithmetic Education for Brain skills:The Abacus over the last 2000 years had evolved to the modern but still a manual version po...
Napier's abacus
This abacus was created by John Napier of Merchiston in 1617 for calculation of products and quotients of numbers. The method was based on Arab mathem...