A collection of 50 puzzles to test your mathematical skills. Anyone looking for number puzzles to stretch and intrigue will be delighted with the contents...
A collection of 50 puzzles to test your mathematical skills. Anyone looking for number puzzles to stretch and intrigue will be delighted with the contents...
In 1862, the Griffin publishing house, a rapidly expanding family business, was facing ruin on the death of Charles, one if its most entrepreneurial leaders....
This book is a collection of numbers which have interesting properties. There are lists of primes, squares, Pythagorean Triples, numbers with many factors and numbers...
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A collection of 50 puzzles to test your mathematical skills. Anyone looking for number puzzles to stretch and intrigue will be delighted with the contents...
A collection of 50 puzzles to test your mathematical skills. Anyone looking for number puzzles to stretch and intrigue will be delighted with the contents...
In 1862, the Griffin publishing house, a rapidly expanding family business, was facing ruin on the death of Charles, one if its most entrepreneurial leaders....
This book is a collection of numbers which have interesting properties. There are lists of primes, squares, Pythagorean Triples, numbers with many factors and numbers...
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