Section 1.2 Introduction to Whole Numbers 9 left is less than the number to the right. Similarly, a number to the right is greater than the number to the left. In mathematics, the symbol 6 is used to denote “is less than,” and the symbol means “is greater than.” Therefore, 0 1 2 3 4 5 6 7 8 Skill Practice Fill in the blank with the symbol 6 or 7. 12. 9 5 13. 8 18 Answers 12. 7 13. 6 3 6 5 means 3 is less than 5 5 7 3 means 5 is greater than 3 7 Determining Order of Two Numbers 6 7. Example 7 Fill in the blank with the symbol or a. 7 0 b. 30 82 Solution: a.7 0 0 1 2 3 4 5 6 7 8 9 10 0 10 20 30 40 50 60 70 80 90 100 7 b. 30 82 6 To visualize 82 and 30 on the number line, it may be necessary to use a different scale. Rather than setting equally spaced marks in units of 1, we can use units of 10. Then 82 must be somewhere between 80 and 90 on the number line. Section 1.2 Practice Exercises Study Skills Exercise In this text, we provide skills for you to enhance your learning experience. Many of the practice exercises begin with an activity that focuses on one of seven areas: learning about your course, using your text, taking notes, doing homework, taking an exam (test and math anxiety), managing your time, and studying for the final exam. Each activity requires only a few minutes and will help you pass this class and become a better math student. Many of these skills can be carried over to other disciplines and help you become a model college student. To begin, write down the following information. a. Instructor’s name b. Instructor’s office number c. Instructor’s telephone number d. Instructor’s email address e. Instructor’s office hours f. Days of the week that the class meets g. The room number in which the h. Is there a lab requirement for this course? class meets If so, where is the lab located and how often must you go? Vocabulary and Key Concepts 1. a. For large numbers, commas are used to separate digits into groups called ______________. b. The place values of the digits in the ones period are the ones, tens, and ______________ places. c. The place values of the digits in the ______________ period are the thousands, ten-thousands, and hundred-thousands places.
miller_prealgebra_2e_ch1_3
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