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# 8.1 practice

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### 8.1 practice

1. 1. Name Class. DatePractice 8–1 Zero and Negative ExponentsSimplify each expression.1. 1602. 4 –23. 3 –34. 8–45. 6. 7. 8.9. 3 • 8010. 16 • 2–211. 12–112. –7–213. 16 • 4014. 9015. 16.
2. 2. 17. 18. 19. 5(–6)020. (3.7)021. (–9)–222. (–4.9)023. –6 • 3–424.Evaluate each expression for a = —2 and b = 6.25. b –226. a –327. (–a)–428. –b–329. 4a–330. 2b–231. (3a)–232. (–b)–2
3. 3. 33. 2a –1b–234. –4a-2 b –335. 3 –2a –2b–136. (3ab)–2Simplify each expression.37. x –838. xy–339. a–5b 40. m 2n –941. 42. 43. 44.45. 3x –6y –546. 8a –3b2c –247. 15s–9t –148. –7p–5q–3r249. 50. 51. 52.
4. 4. Write each number as a power of 10 using negative exponents.53. 54. 55. 56.Write each expression as a decimal.57. 10-558. 10–859. 4 • 10-160. 6 • 10-4Evaluate each expression for m = 4, n = 5, and p = —2.61. mp62. nm63. pp64. np65. mpn 66. m –n67. p –n 68. mnp69. p–m70. 71. 72. –n-m