Cryobanksindia's Article in Science
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670
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Learning new things old ways
Abacus helps in acquiring the ability to calculate accurately as well as rapidly. It enhances your ability to calculate mentally in a more efficient manner. Abacus is a fun tool that allows you to learn about the base ten systems, patterns among numbers and how to do math mentally. Brain Master Arithmetic System teaches the right way to use this amazing calculating machine.
Posted on Sep-26-2011
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