# Peterson's New SAT Math Workbook (Academic Test Preparation by Peterson's

By Peterson's

Peterson’s New SAT Math Workbook offers distinct try education for the hot SAT I examination that may be brought in March 2005. This identify is designed as a self-teaching textual content to organize for the maths sections of the SAT. at first of every bankruptcy, there's a ten-question diagnostic attempt to steer the student’s guidance through the booklet. on the finish of every bankruptcy is a retest that's just like the diagnostic attempt. it is also countless numbers of perform difficulties protecting geometry, algebra, fractions, and extra, in addition to specialist test-taking suggestions, versatile learn making plans, elementary layout geared to the highschool scholar, and solutions with complete factors for all try out goods in an easy-to-use workbook layout.

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Extra info for Peterson's New SAT Math Workbook (Academic Test Preparation Series)

Sample text

The sum of the digits in the numerator is 24. The sum of the digits in the denominator is 30. Since these sums are both divisible by 3, each number is divisible by 3. Since these numbers meet the divisibility tests for 2 and 3, they are each divisible by 6. Example: 43, 672 Simplify to simplest form: 52, 832 Solution: Since both numbers are even, they are at least divisible by 2. However, to save time, we would like to divide by a larger number. The sum of the digits in the numerator is 22, so it is not divisible by 3.

A) (B) (C) (D) (E) 3 5 21 32 11 16 55 64 7 8 Solution: To compare the last four, we can easily use a common denominator of 64. 21 42 = 32 64 11 44 55 7 56 = = 16 64 64 8 64 7 7 3 7 The largest of these is . Now we compare with using Method II. 7 · 5 > 8 · 3; therefore, 8 8 5 8 is the greatest fraction. com 29 30 Chapter 2 Exercise 5 Work out each problem. Circle the letter that appears before your answer. 1. Arrange these fractions in order of size, from largest to smallest: (A) (B) (C) (D) (E) 2.

3. com 5. 2 7 of . 3 12 7 (A) 8 7 (B) 9 8 (C) 7 8 (D) 9 7 (E) 18 5 Divide 5 by . 12 25 (A) 12 1 (B) 12 5 (C) 12 Find (D) 12 (E) 12 5 Operations with Fractions 3. SIMPLIFYING FRACTIONS All fractional answers should be left in simplest form. There should be no factor that can still be divided into numerator and denominator. In simplifying fractions involving very large numbers, it is helpful to tell at a glance whether or not a given number will divide evenly into both numerator and denominator. Certain tests for divisibility assist with this.