22 Chapter 1 Whole Numbers Section 1.3 Practice Exercises Study Skills Exercise It is very important to attend class every day. Math is cumulative in nature, and you must master the material learned in the previous class to understand the lesson for the next day. Because this is so important, many instructors tie attendance to the final grade. Write down the attendance policy for your class. Vocabulary and Key Concepts 1. a. The numbers being added in an addition problem are called the . b. The result of an addition problem is called the . c. A is a letter or symbol that represents a number. d. The property of addition states that the order in which two numbers are added does not affect the sum. e. For any number a, the addition property of 0 states that a 0 ___ and that 0 a ___. f. The associative property of addition states that (a b) c . This implies that the manner in which addends are grouped under addition does not affect the sum. g. Given the subtraction statement 15 4 11, the number 15 is called the , the number 4 is called the , and the number 11 is called the . h. A is a flat closed figure formed by line segments connected at their ends. i. The of a polygon is the sum of the lengths of the sides. 2. Write 5,024 in expanded form. 3. Write 351 in expanded form. 4. Write in standard form: two thousand, four 5. Write in standard form: four thousand, twelve Review Exercises For Exercises 2–6, write the number in the form indicated. 6. Write in standard form: 6 thousands 2 hundreds 6 ones Concept 1: Addition of Whole Numbers 7. Fill in the table. 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9
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