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Section 2.4 Multiplication and Division of Integers 111 Vocabulary and Key Concepts 1. a. The product of two numbers with the same sign is (positive/negative). The product of two numbers with different signs is (positive/negative). b. The quotient of two numbers with the same sign is (positive/negative). The quotient of two numbers with different signs is (positive/negative). Review Exercises 2. Simplify. a. 05 0 b. 05 0 c. 05 0 d. 05 0 e. 152 For Exercises 3–8, add or subtract as indicated. 3. 14 152 4. 24 50 5. 33 1112 6. 7 1232 7. 23 12 142 1102 8. 9 1122 17 4 1152 Concept 1: Multiplication of Integers For Exercises 9–24, multiply the integers. (See Example 1.) 9. 3152 10. 21132 11. 152 182 12. 1122 122 13. 7132 14. 51122 15. 12142 16. 61112 17. 15132 18. 31252 19. 9182 20. 8132 21. 14 0 22. 8 0 23. 95112 24. 144112 For Exercises 25–30, translate to a mathematical expression. Then simplify. (See Example 2.) 25. Multiply 3 and 1 26. Multiply 12 and 4 27. The product of 5 and 3 28. The product of 9 and 2 29. 3 times 5 30. 3 times 6 Concept 2: Multiplying Many Factors For Exercises 31–40, multiply. (See Example 3.) 31. 152 122 142 1102 32. 132 152 122 142 33. 1112 142 122 34. 1202 132 112 35. 1242 122 102 132 36. 132 102 1132 1222 37. 112 112 112 112 112 112 38. 112 112 112 112 112 112 112 39. 122 122 122 122 122 40. 122 122 122 122 Concept 3: Exponential Expressions For Exercises 41–56, simplify. (See Example 4.) 41. 102 42. 82 43. 1102 2 44. 182 2 45. 103 46. 83 47. 1102 3 48. 182 3


miller_prealgebra_2e_ch1_3
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