Description of Fast calculation-tính nhanh Fast calculation is a simple game, everyone can play. Regardless of young age, boys and girls are able to play and express their sensitivity inDragon VS Tiger calculating.This game Fast calculation is especially suitable for children, help stimulate curiosity, enhance the ability to think, quick judgment, decisive.The game Fast calculation with a simple interface, but no less beautiful to create a friendly feeling, easy to understand for everyone.Get started right away !!!!!!!!!!!!!!!!

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