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Five-Minute Check (over Lesson 11–5) Main Idea Example 1: Divide Integers Example 2: Divide Integers Example 3: Divide Integers Example 4: Divide Integers Example 5: Divide Integers Key Concept: Divide Integers Example 6: Divide Integers to Solve a Problem • Divide integers. Divide Integers Find –9 ÷ 3. Separate 9 negative counters into 3 equal-size groups. Answer: So, –9 ÷ 3 = –3. Find –16 ÷ 4. A. –12 B. –4 C. 4 1. A 2. B 3. C 0% 0% 4. 0% D 0% D. 12 A B C D Divide Integers Find 28 ÷ 7. Separate 28 positive counters into 7 equal-size groups. Answer: So, 28 ÷ 7 = 4. Find 24 ÷ 8. A. –16 B. –3 C. 3 1. A 2. B 3. C 0% 0% 4. 0% D 0% D. 16 A B C D Divide Integers Find –16 ÷ 2. negative quotient Since –8 × 2 = –16, it follows that –16 ÷ 2 = –8. Answer: –8 Find –36 ÷ 9. A. –27 B. –4 C. 4 1. A 2. B 3. C 0% 0% 4. 0% D 0% D. 27 A B C D Divide Integers Find 36 ÷ (–6). negative quotient Since –6 × –6 = 36, it follows that 36 ÷ (–6) = –6. Answer: –6 Find 14 ÷ (–2). A. –12 B. –7 C. 7 1. A 2. B 3. C 0% 0% 4. 0% D 0% D. 12 A B C D Divide Integers Find –30 ÷ (–5). positive quotient Since 6 × –5 = –30, it follows that –30 ÷ –5 = 6. Answer: 6 Find –42 ÷ (–6). A. –48 B. –7 C. 7 1. A 2. B 3. C 0% 0% 4. 0% D 0% D. 36 A B C D Divide Integers to Solve a Problem A scuba diver descended a total of 56 feet below the surface of the ocean in 4 minutes. If the diver descended at a constant rate, which integer gives the feet descended each minute? A –14 B –7 C 7 D 14 Read the Item You need to find the feet per minute the diver descended. Represent the total number of feet below the surface of the ocean using –56. Solve the Item –56 ÷ 4 = –14 Answer: A Roberto missed a total of 6 points on a science quiz. If he missed the same number of points on each of 3 problems, which integer represents the number of points scored for each missed problem? A. 6 B. 2 1. A C. –2 2. B 3. C 0% 4. 0% D0% 0% D. –6 A B C D End of the Lesson Five-Minute Check (over Lesson 11–5) Image Bank Math Tools Multiply Positive and Negative Integers (over Lesson 11-5) Use the work backward strategy to solve. Cedric flew from New York City to visit his cousins in Dallas. He had a connecting flight in Cincinnati. The flight from New York City to Cincinnati was 589 miles. He then flew from Cincinnati to Dallas. If his return flight was the same route and he flew a total of 2,800 miles, what is the distance of the flight from Cincinnati to Dallas? A. 811 miles 1. 2. A B 3. C B. 1,178 miles 4. D C. 1,767 miles 0% 0% 0% 0% D. 589 miles A B C D (over Lesson 11-5) Use the work backward strategy to solve. A number is divided by 8, and then 5 is added to the quotient. The result is 9. What is the number? A. 16 B. 28 1. A 2. B C. 32 0% 0% 3. 0% C 0% 4. D A B C D D. 36 (over Lesson 11-5) Morgan bought a pair of earrings. She gave the sales associate $10 and received $2.37 back in change. If Morgan paid $0.65 in tax, how much did the earrings cost? A. $3.02 B. $5.02 1. A 2. B C. $6.98 3. C 4. D D. $7.63 0% 0% 0% 0% A B C D

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Student Edition, Algebra 1, Glencoe McGraw-Hill, glencoe mcgraw hill, Glencoe Pre-Algebra, Prentice Hall, Mathematics Books, Practice Workbook, Teacher's Edition, Chapter 6

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posted: | 7/12/2011 |

language: | English |

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