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Because fluency practice is not a worksheet. Fluency in mathematics is more than adeptly using basic facts or implementing algorithms. Real fluency involves rea
The author takes the general reader on a tour of the mathematical puzzles and paradoxes inherent in voting systems, such as the Alabama Paradox, in which an inc
From the New York Times bestselling author of The Night Gardener, Peter Nimble and His Fantastic Eyes is the utterly beguiling tale of a ten-year-old blind orph
These simple math secrets and tricks will forever change how you look at the world of numbers. Secrets of Mental Math will have you thinking like a math genius