Section 1.5 Multiplication of Whole Numbers and Area 43 Section 1.5 Practice Exercises Study Skills Exercise Sometimes you may run into a problem with homework, or you may find that you are having trouble keeping up with the pace of the class.A tutor can be a good resource. Answer the following questions. a. Does your college offer tutoring? b. Is it free? c. Where would you go to sign up for a tutor? 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 . That is, the order of factors does not affect the product. a b b a c. The _______________ property of multiplication indicates that the manner in which factors are grouped under multiplication does not affect the product. That is, _______________. d. The multiplication property of 0 states that a 0 _______________ and 0 a _______________. e. The multiplication property of 1 states that a 1 _______________ and 1 a _______________. f. The _______________ property of multiplication over addition states that _______________. 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. a 1b c2 1a b2 c 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 For Exercises 7–10, write the repeated addition as multiplication and simplify. 7. 8. 5 5 5 5 5 5 2 2 2 2 2 2 2 2 2 9. 9 9 9 10. 7 7 7 7
miller_prealgebra_2e_ch1_3
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