## Realm of numbersExplanations of mathematical techniques and principles are combined with the history of mathematics. Includes simple arithmetic, square root, logarithms, and even imaginary numbers. |

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### Contents

Digits and Digits | 1 |

Nothing and Less than Nothing | 18 |

ByPassing Addition | 35 |

Copyright | |

7 other sections not shown

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### Common terms and phrases

abacus Achilles adding answer antilogarithm called complex numbers consider converging series converted count counters cube roots decimal equivalent decimal point denominator denumerable digits divided dots endless series endlessly exponential numbers exponents expressed factors figure finger gestures fingers fluid ounces four fourth root fractions give hundred hypotenuse imaginary numbers inches long instance involve irrational number length logarithmic scale lollipops look manipulation mathematicians mathematics matter metric system move multiplication table negative numbers nonexponential number multiplied number of zeros number system numbers being multiplied oblong ordinary numbers pattern positional notation positive numbers possible problem Pythagorean Theorem quotient ratio rational numbers real numbers represented reverse right triangle rung series of integers series of numbers side Similarly slide rule small number smaller square numbers square root Suppose symbol ten-based system tens thousand top and bottom tortoise twelve-based system whole numbers write written yards