Numbers have frequently been called a universal language for their ability to transmit information across cultures. This book offers an overview of the development of numbers, their expression in mathematics and measurement, and profiles of visionaries who saw order amidst the numbers.
How to Calculate Quickly: Full Course in Speed ArithmeticMany useful procedures explained and taught: two-column addition, left-to-right subtraction, direct multiplication by numbers greater than 12, mental division of large numbers, more. Also numerous helpful short cuts. More than 8,000 problems, with solutions. This book do not used trick but teach you "number sense" ... and how to calculate from left to right with complex number. Believe me, I was afraid of that kind of calculation and with that book I learned a lot!
Numbers Rule: The Vexing Mathematics of Democracy, from Plato to the PresentSince the very birth of democracy in ancient Greece, the simple act of voting has given rise to mathematical paradoxes that have puzzled some of the greatest philosophers, statesmen, and mathematicians. Numbers Rule traces the epic quest by these thinkers to create a more perfect democracy and adapt to the ever-changing demands that each new generation places on our democratic institutions.
Whether you're a student preparing to take algebra or a parent who wants to brush up on basic math, this fun, friendly guide has the tools you need to get in gear. From positive, negative, and whole numbers to fractions, decimals, and percents, you'll build necessary skills to tackle more advanced topics, such as imaginary numbers, variables, and algebraic equations.
Ron White is the USA Memory Champion. There is no one in the country that has more credibility than him in regards to memory. He holds the record for most numbers memorized in 5 minutes (167 consecutive digits) and the fastest to memorize a deck of cards (1 minute 27 seconds). This program, Memory in a Month will guide you through his memory process and catapult your memory skills! You will learn to recall names, numbers, playing cards, foreign languages, chapters of books, poems, scripture, technical data, information from seminars and much more!
