11-2 Comparing and Ordering Integers Warm Up Warm Up Lesson Presentation Lesson Presentation Problem of the Day Problem of the Day Lesson Quizzes Lesson Quizzes

11-2 Comparing and Ordering Integers Warm Up Compare. Write, or =. 1. 8,426 8, ,625 6, ,071 2, ,250 2,250 > > < =

11-2 Comparing and Ordering Integers Problem of the Day Four friends are waiting in line at the amusement park. Jenna is in front of Kyle. Kyle is behind Gary and in front of Maggie. Gary is first. In what order are they waiting? Gary, Jenna, Kyle, Maggie

11-2 Comparing and Ordering Integers Learn to compare and order integers.

11-2 Comparing and Ordering Integers Numbers on a number line increase in value as you move from left to right. Remember!

11-2 Comparing and Ordering Integers Additional Example 1: Comparing Integers Use the number line to compare each pair of integers. Write. A. –2 2 B. 3 –5 C. –1 –4 –5 –4 –3 –2 – –2 is to the left of 2 on the number line.–2 < 2 3 > –53 is to the right of –5 on the number line. –1 is to the right of –4 on the number line.–1 > –4

11-2 Comparing and Ordering Integers Check It Out: Example 1 Use the number line to compare each pair of integers. Write. A. –2 1 B. 2 –3 C. –3 –4 –5 –4 –3 –2 – –2 is to the left of 1 on the number line.–2 < 1 2 > –32 is to the right of –3 on the number line. –3 is to the right of –4 on the number line.–3 > –4

11-2 Comparing and Ordering Integers Additional Example 2: Ordering Integers Order the integers in each set from least to greatest. A. –2, 3, –1 B. 4, –3, –5, 2 –3 –2 – Graph the integers on the same number line. Then read the numbers from left to right: –2, –1, 3. –6 –5 –4 –3 –2 – Graph the integers on the same number line. Then read the numbers from left to right: –5, –3, 2, 4.

11-2 Comparing and Ordering Integers Check It Out: Example 2 Order the integers in each set from least to greatest. A. –2, 2, –3 B. 6, –2, 5, –3 –3 –2 – Graph the integers on the same number line. Then read the numbers from left to right: –3, –2, 2. –6 –5 –4 –3 –2 – Graph the integers on the same number line. Then read the numbers from left to right: –3, –2, 5, 6.

11-2 Comparing and Ordering Integers Additional Example 3: Problem Solving Application 1 Understand the Problem The answer will be the player with the lowest score. List the important information: Craig scored +2. Cameron scored +3. Rob scored –1. In a golf match, Craig scored +2, Cameron scored +3, and Rob scored –1. Who won the golf match?

11-2 Comparing and Ordering Integers Additional Example 3 Continued 2 Make a Plan You can draw a diagram to order the scores from least to greatest. Solve 3 Draw a number line and graph each player’s score on it. –3 –2 – Rob’s score, –1, is farthest to the left, so it is the lowest score. Rob won the golf match.

11-2 Comparing and Ordering Integers Additional Example 3 Continued Negative integers are always less than positive integers, so neither Craig nor Cameron won the golf match. Look Back 4

11-2 Comparing and Ordering Integers Check It Out: Example 3 1 Understand the Problem The answer will be the player with the lowest score. List the important information: Melissa scored +6. Trista scored –3. Alyssa scored –1. In a golf match, Melissa scored +6, Trista scored –3, and Alyssa scored –1. Who won the golf match?

11-2 Comparing and Ordering Integers Check It Out: Example 3 Continued 2 Make a Plan You can draw a diagram to order the scores from least to greatest. Solve 3 Draw a number line and graph each player’s score on it. Trista’s score, –3, is farthest to the left, so it is the lowest score. Trista won the golf match. –6 –5 –4 –3 –2 –

11-2 Comparing and Ordering Integers Negative integers are always less than positive integers, so Melissa cannot be the winner. Since Trista’s score of –3 is less than Alyssa’s score of –1, Trista won. Look Back 4 Check It Out: Example 3 Continued

11-2 Comparing and Ordering Integers Standard Lesson Quiz Lesson Quizzes Lesson Quiz for Student Response Systems

11-2 Comparing and Ordering Integers Lesson Quiz Order the integers in each set from least to greatest. 1. –3, 7, 4 2. –11, 2, 5, –15 Compare. Write, or =. 3. –3 –44. –12 –10 5. A location in Carlsbad Caverns is 752 ft below sea level, and another location is 910 ft below sea level. Which location is closer to sea level? –15, –11, 2, 5 –3, 4, 7 > < the location at –752 feet

11-2 Comparing and Ordering Integers 1. Which of the following represents the integers in the given set ordered from least to greatest? –5, 9, 2 A. 2, 9, –5 B. 9, 2, –5 C. 2, –5, 9 D. –5, 2, 9 Lesson Quiz for Student Response Systems

11-2 Comparing and Ordering Integers 2. Which of the following represents the integers in the given set ordered from least to greatest? –17, 10, 8, –19 A. –17, –19, 8, 10 B. –19, –17, 8, 10 C. 10, 8, –17, –19 D. 8, 10, –17, –19 Lesson Quiz for Student Response Systems

11-2 Comparing and Ordering Integers 3. Identify the correct sign to compare. –23 __ 20 A. > B. < C. = Lesson Quiz for Student Response Systems

11-2 Comparing and Ordering Integers 4. A submarine is 896 ft below sea level, and another submarine is 925 ft below sea level. Which submarine is closer to the surface of the sea? A. submarine at –896 ft B. submarine at 896 ft C. submarine at –925 ft D. submarine at 925 ft Lesson Quiz for Student Response Systems