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marquit...@gmail.com
May 13, 2013, 6:40:11 AM5/13/13
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MathRapid "MathRapid" is an easy brain training game. From 20 years old the brain begins to deteriorate. Train your mind with this game of mental calculation, valid from 5 years old to infinity and beyond. It is an entertaining way so that the kids revisit the basic mathematical operations, but also serve as training in mental calculation for the elderly. http://rogdai.info/details.php?progid=4066
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