1Print Reading for ConstructionInstructor’s ResourceUnit 2 Answer KeyAnswers to Unit 2 Practice ProblemsPractice Problems: Adding Fractions, Page 201. 1 3/82. 1 1/163. 1 13/244. 1 1/45. 25/326. 3 11/167. 1 9/648. 1 29/329. 4 1/810. 1411. 24 27/3212. 1 3/6413. 38 1/414. 1 3/6415. 3 3/16Practice Problems: Subtracting Fractions, Page 211. 1/82. 7/163. 1 1/164. 2 15/165. 3 9/326. 2 5/87. 3 9/168. 1 3/169. 9 53/6410. 10 1/8UNIT2Construction Mathand Application
Copyright Goodheart-Willcox Co., Inc. May not be posted to a publicly accessible website.2Print Reading for ConstructionInstructor’s ResourceUnit 2 Answer KeyPractice Problems: Multiplying Fractions, Page 211. 3/82. 21/323. 4 3/84. 2 1/45. 6 1/46. 19/647. 128. 4 13/169. 810. 28Practice Problems: Dividing Fractions, Page 221. 11/242. 163. 8 1/164. 265. 13/166. 27. 128. 6 18/259. 1410. 1 13/16Practice Problems: Adding and Subtracting Decimals, Page 231. 14.00122. 5.56253. 15.18754. 27.93275. 1.53956. 11.00057. 1.4318. 3.93759. 9.2510. 1.125
Copyright Goodheart-Willcox Co., Inc. May not be posted to a publicly accessible website.3Print Reading for ConstructionInstructor’s ResourceUnit 2 Answer KeyPractice Problems: Multiplying Decimals, Page 231. 8.443752. 49.694203. 41.754. 4.94425. 24.40526. 2.2507. 6.68258. 3759. 6.522610. 56392.5Practice Problems: Dividing Decimals, Page 241. 3.52. 8.273. 18.74. 725. 8406. 820.47. 4.118. 9.99. 8.7510. 97.2Answers to Test Your Knowledge Questions1. D. 3/42. A. 7/163. D. 3/84. B. 4/275. C. 6 1/126. D. 29.1067. B. 19.0678. D. 2.469. D. 3.1610. A. 36.9
Copyright Goodheart-Willcox Co., Inc. May not be posted to a publicly accessible website.4Print Reading for ConstructionInstructor’s ResourceUnit 2 Answer KeyAnswers to Activity 2-1, Problems in Construction Mathematics1. 62′-1′″2. 2′-10 5/16′″3. 1′-8 5/8′″4. 4 7/8″5. 426 1/4 hours6. 30.21 ft27. 9′-0 3/4′″8. 7 3/4″9. 24 shelf cleats, nothing remaining10. 21 truckloads11. 144 ft3= 5.33 cy12. 2000 ft3= 74 cy13. 5.16 gallons14. 171.4 gallons15. 29.31 m316. A. exact 364.33 ft2, rounded 364 ft2B. exact 169.58 ft2, rounded 170 ft2C. exact 3.64 gallons, rounded 4 gallonsD. exact 49.16′, rounded 50′′17. exact 1.47 cy, rounded 2 cy18. 39′19. exact 39.2′, rounded 40′′20. exact 117.4 ft2, rounded 118 ft221. A. 6′22. A. 13′-1′″23. A. 19′-5′″B. 1′-9′″C. 25′-5′″24. A. 22′-10′″B. 23′-7′″C. 12′-7′″D. 18′-3′″E. 10′-6′″25. 467.12 ft226. 336.875 ft227. 5382 ft3
Copyright Goodheart-Willcox Co., Inc. May not be posted to a publicly accessible website.1Print Reading for ConstructionInstructor’s ResourceUnit 3 Answer KeyAnswers to Test Your Knowledge Questions1. B. 635 mm2. D. 3.73 m3. A. 1 1/2″4. A. 57′-1 7/8′″5. True6. A. 64.2 m7. C. 4′-8′″8. E. None of these answers is reasonable.9. True10. True11. C. 1/4″= 1′-0′″12. D. construction standards using the metric system have not been established13. False14. False15. False16. True17. A. 1″B. 1″C. 1/4″D. 1/4″18. D. 1″= 20″′Answers to Activity 3-1, Reading a Fractional RuleA. 3 7/16″B. 11 7/8″C. 1′-5 3/16′″D. 1′-7 3/4′″E. 2′-9 1/16′″F. 2′-10 15/16′″UNIT3Reading MeasuringTools and UsingScales
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Test, Districts of Vienna, Goodheart Willcox Co, Construction Instructor