Section 1.5 Multiplication of Whole Numbers and Area 47 Section 1.5 Practice Exercises Study Skills Exercise Write down your instructor’s policies for the following: a. Missing a test b. Missing a class c. Doing homework d. Late homework policy Vocabulary and Key Concepts 1. a. Two numbers being multiplied are called and the result is called the . b. The property of multiplication states that the order of factors does not affect the product. c. The property of multiplication indicates that the manner in which factors are grouped under multiplication does not affect the product. d. The multiplication property of 0 indicates that and . e. The multiplication property of 1 indicates that 7 1 and 1 7 . f. The statement 3(4 6) 3 4 3 6 is an example of the property of multiplication over addition. 7 0 0 7 g. The of a region measures the amount of surface contained within the region. h. Given a rectangle of length l and width w, the area A is given by A . Review Exercises For Exercises 2–5, estimate the answer by rounding to the indicated place value. 2. 5981 7206; thousands 3. 869,240 34,921 108,332; ten-thousands 4. 907,801 413,560; hundred-thousands 5. 8821 3401; hundreds Concept 1: Introduction to Multiplication 6. Fill in the table of multiplication facts. 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9
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