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With a clear and simple style, Lucille Caron and Phil St. Jacques help students get a handle on percents and ratios. They will learn reduce ratios, find equivalent ratios, and the relationship of ratios and proportion. Then they will learn the meaning of percents, and how they relate to fractions and ratios. Calculation techniques are clearly explained and many examples are included throughout the book. Whether you are looking to learn this information for the first time, on your own or with a tutor, or you would like to review your math skills, this book will be a great choice.

Introduction

RATIOS

The Meaning of Ratios

Reducing Ratios

Ratios and Percents

Equivalent Ratios

Rates

Units of Measure

Ratios and Fractions

Ratios and Decimals

Unit Pricing

Ratio and Proportion

Finding a Number When a Ratio Is Known

Scale Drawings

The Golden Rectangle

Probability

PERCENTS

The Meaning of Percents

Percents and Ratios

Decimal Equivalents

Fraction Equivalents

Mixed Numerals

Finding the Percent of a Number

Applying Percent: Part and Whole

Finding the Total Number

Percent Increase and Decrease

Discount and Sale Price

Percents Larger than 100%

Commission and Income

Simple Interest

Compound Interest

Further Reading

Index

July/August 2001...

Percents and Ratios and Pre-Algebra and Algebra are two of a series of six books By Lucille Caron and Philip M. St. Jacques. Both books are designed to help a student, parent, or teacher in different aspects of mathematical problems by offering step-by-step sample solutions to concepts presented in the problems. These are not textbooks, but rather well-written and easy-to-understand manuals. Each has 28 sections relating to its title. Percents and Ratios investigates such topics as ‘The Meaning of Ratios,’ ‘Ratios and Percents,’ ‘Units of Measure,’ ‘Ratios and Decimals,’ ‘Scale Drawings,’ and ‘The Golden Rectangle.’ Pre-Algebra and Algebra examines ‘Algebra and Integers’ and ‘Absolute Value’ and includes chapters on the addition, subtraction, multiplication, and division of integers. Also included are numerous sections on how to solve different types of equations. The book ends with an excellent section on how to solve inequalities. The sections in each book follow the same pattern. Each starts with an explanation of what is to be covered, step-by-step solutions (with explanations), and, finally, some type of related material or a helpful hint. At the end of both books one finds a section on ‘Further Reading,’ a list of Internet addresses, and an index. These two books and, most likely, the four others in the series would make a fantastic resource for the classroom, library, and home. Because of the user-friendly style of the information presented, anyone from a teacher to a parent or student could find a use for these books. As a high school mathematics teacher, I see a definite use for the series in my classes.

Lucille Caron and Philip M. St. Jacques are New Jersey public school educators. They have collaborated on various educational math projects, including editing, test writing, and textbook development committee work. Ms. Caron and her husband have four children and Mr. St. Jacques and his wife have five children and two grandchildren. This is their first set of books for Enslow Publishers, Inc.