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Books and DVDs

The author, Yusnier Viera, has several World Records in Mental Calculation and has appeared in prestigious TV channels like CNN & ABC. He starred in the Discovery Channel show "Super Human Lab" in 2012.

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Phone Apps

Use your “Pirthday” next time you buy the lottery ticket!

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What day were you born?

Ever wonder what day were you born on? Well, you can find out with this neat little script. Simply type your date of birth in the box below!

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Hectoc is the most exciting arithmetic game.

Check it out at the Hectoc Website!