By Joanne Lockwood Richard N. Aufmann
Prealgebra, 5/e, is a consumable worktext that is helping scholars make the transition from the concrete international of mathematics to the symbolic global of algebra. The Aufmann group achieves this by way of introducing variables in bankruptcy 1 and integrating them during the textual content. This text's power lies within the Aufmann Interactive procedure, which allows scholars to paintings with math options as they are being brought. every one set of matched-pair examples is equipped round an aim and incorporates a labored instance and a you are trying It instance for college students. furthermore, this system emphasizes AMATYC criteria, with a distinct specialise in real-sourced information. The 5th variation contains the hallmarks that make Aufmann developmental texts excellent for college kids and teachers: an interactive process in an objective-based framework; a transparent writing kind; and an emphasis on challenge fixing techniques, providing guided studying for either lecture-based and self-paced classes. The authors introduce new routines designed to foster conceptual knowing: Interactive workouts and give it some thought routines.
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Extra resources for Prealgebra , Fifth Edition
Then write the period name in place of the comma. Introduction to Whole Numbers Point of Interest George Washington used a code to communicate with his men. He had a book in which each word or phrase was represented by a three-digit number. The numbers were arbitrarily assigned to each entry. Messages appeared as a string of numbers and thus could not be decoded by the enemy. ” To write a whole number in standard form, write the number named in each period, and replace each period name with a comma.
Then, browse through the objective material. Especially note the words or phrases in bold type—these are important concepts that you’ll need as you’re moving along in the course. As you start moving through the chapter, pay special attention to the rule boxes. These rules give you the reasons certain types of problems are solved the way they are. When you see a rule, try to rewrite the rule in your own words. Rule for Adding Two Integers To add two integers with the same sign, add the absolute values of the numbers.
If the results are equal, the given number is a solution of the equation. If the results are not equal, the given number is not a solution. EXAMPLE 1 Copyright © Houghton Mifflin Company. All rights reserved. Solution EXAMPLE 2 11 2 ϩ x 11 2 ϩ 9 11 11 Yes, 9 is a solution of the equation. Estimate the sum of 379, 842, 693, and 518. YOU TRY IT 1 379 842 693 518 Your Solution 400 800 700 ϩ 500 2,400 Identify the property that justifies the statement. YOU TRY IT 2 The Commutative Property of Addition Identify the property that justifies the statement.