Peterson's Master the Gre 2010 - Part book includes 9 full-length practice tests , thorough reviews of every section on the exam, and expert tips and strategies from a test prep pro. GRE (Graduage Record Examination General Test) is a commercially-run standardized test and an admission requirement for many graduate schools in USA and other English-speaking countries. GRE can earn you between 200-800 points. | Chapter 9 Math Review Number Forms Relationships and Sets 193 1. Column A Column B The number of fifths in The number of eighths in 340 A The quantity in Column A is greater. B The quantity in Column B is greater. C The quantities are equal. D The relationship cannot be determined from the information given. The correct answer is C . First determine Quantity A. 340 is or 32. 5 Since there are five fifths in 1 Quantity A must be 3 5 2 or 17. Next determine Quantity B. is or2 - Since there are eight eighths in 1 Quantity B must be 2 8 1 or 17. To guard against conversion errors keep in mind the general magnitude of the number you re dealing with. For example think of .09 as just less than .1 which is one-tenth of a percent or a thousandth a pretty small valued number . Think of as just less than - which is obviously or 10 . Think of 668 as more than 6 times a complete 100 or between 6 and 7. To rewrite a fraction as a decimal simply divide the numerator by the denominator using long division. A fraction-to-decimal equivalent might result in a precise value an approximation with a repeating pattern or an approximation with no repeating pattern 5 - 8 The equivalent decimal number is precise after three decimal places. 5 - 9 The equivalent decimal number can only be approximated the digit 5 repeats indefinitely . 5 - 7 The equivalent decimal number is expressed here to the nearest thousandth. You won t have access to a calculator during the exam so knowing how to convert numbers from one form to another is a crucial skill. Certain fraction-decimal-percent equivalents show up on the GRE more often than others. The numbers in the following tables are the test makers favorites because they reward test takers who recognize quick ways to deal with numbers. Memorize these conversions so that they re second nature to you on exam day. 194 PART IV Quantitative Reasoning Percent Decimal Fraction Percent Decimal Fraction 1
