## More Rapid Math: Tricks and Tips: 30 Days to Number MasteryMath skills you can count on! In this eagerly awaited sequel to the popular Rapid Math Tricks and Tips, Professor Ed Julius shows you how to master difficult problems in addition, subtraction, multiplication, and division quickly, easily?and without a calculator. And have fun while doing it! By learning one to two tricks a day for thirty days, you'll be amazed at the increase in your number power. Discover how you can quickly subtract by oversubtracting. Speed up your calculating with place-value multiplication. See how to add in seconds by breaking a number apart. More Rapid Math Tricks and Tips includes: * Step-by-step examples to explain each technique * Over 1,400 sample problems and practice exercises * Challenging "brain builders" to keep you on your toes * Weekly quizzes and a final exam so you can check your progress * Fascinating mathematical curiosities and parlor tricks, such as the Amazing Age-Divining Trick and the Phenomenal Fifth-Root Trick Whether calculating the total at the supermarket checkout, reconciling a bank statement, or figuring the sales tax on your latest purchase, More Rapid Math Tricks and Tips makes working with numbers fast, fun, and easy. It's a must for math lovers, as well as students, teachers, and anyone who works with numbers on a regular basis. "Ed Julius has written another engaging book that will definitely excite the mind." --Mick Horwitz, Founding Director Sierra Canyon College Preparatory School, "The original Rapid Math Tricks and Tips has been a staple in my classroom for the past four years. The sequel is definitely another winner!" --Laurie Curtis-Abbe, Teacher Anacapa Middle School, a California/National School of Excellence a U.S. Department of Education Blue Ribbon Exemplary School |

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### Contents

Introduction | 1 |

More Basic Rapid Math Tricks | 11 |

Subtracting without Borrowing | 17 |

Copyright | |

22 other sections not shown

### Common terms and phrases

12 Step adding answer space Brain Builder example carried casting out nines Cross-multiply Definitely incorrect Determine the distance digit total distance from 100 Elementary Brain Builders Elementary Example Elementary Exercises emphasizing place value fifth root Food for Thought four-digit half of answer hundreds digits left half left portion left to right Mathematical Curiosity multiple of 100 multiply a number Multiply the tens Multiply Two Numbers number being squared number by 111 number ending number exactly Number Potpourri original Rapid Math Parlor Trick partial sums Place-Value Multiplication portion of answer Probably correct Rapid Math Tricks Rapidly Add Rapidly Multiply Recast the computation Restate right half right portion solutions solutions on page solve square a number Square the number Strategy subtract without borrowing technique tens digits Thought Process Summary Trick 18 Trick 24 Trick 33 Trick 50 Tricks and Tips Tricks Trick two-digit number whole number zero