Have you ever wondered how those freaks of nature known as Human Calculators do what they do? How they're able to s
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Chapter 1 : What is Ofpad mental math system? -- Chapter 2 : DS method of checking -- Chapter 3 : DD method of checking
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Mental math iѕ the ability to nоt only dо ѕimрlе mаthеmаtiсѕ in your hеаd but also the not-so-simple mаthеmаtiсѕ as well
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These simple math secrets and tricks will forever change how you look at the world of numbers. Secrets of Mental Math w
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With Professor Ed Julius' thirty-day Number Power Program, you'll learn how to whiz through common (and some n
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The secret to speed math is all about which technique you use. Knowing this will enable you to do seemingly impossible c
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Insane Number Hacks For Curious Adults And Daring Students! In this epic book, you'll uncover 50 unbelievable ways
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"There are tips in this book that everyone can appreciate. From interesting chords to some pro music knowledge that
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