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Course 2, Lesson 2-2 Find each number. Round to the nearest tenth if necessary. 1. 165% of 60 2. 233% of 75 3. 48% of 90 4. 20% of $365 5. 80% of 105 6.

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Presentation on theme: "Course 2, Lesson 2-2 Find each number. Round to the nearest tenth if necessary. 1. 165% of 60 2. 233% of 75 3. 48% of 90 4. 20% of $365 5. 80% of 105 6."— Presentation transcript:

1 Course 2, Lesson 2-2 Find each number. Round to the nearest tenth if necessary. 1. 165% of 60 2. 233% of 75 3. 48% of 90 4. 20% of $365 5. 80% of 105 6. Tanya earns a perfect score 25% of the time that she performs her gymnastics routine. If she performs 44 times in a season, how many times will she NOT receive a perfect score?

2 Course 2, Lesson 2-2 ANSWERS 1. 99 2. 174.8 3. 43.2 4. $73 5. 84 6. 33

3 HOW can percent help you understand situations involving money? Ratios and Proportional Relationships Course 2, Lesson 2-2

4 Ratios and Proportional Relationships Course 2, Lesson 2-2 Common Core State Standards © Copyright 2010. National Governors Association Center for Best Practices and Council of Chief State School Officers. All rights reserved. 7.RP.3 Use proportional relationships to solve multistep ratio and percent problems. 7.EE.3 Solve multistep real-life and mathematical problems posed with positive and negative rational numbers in any form (whole numbers, fractions, and decimals), using tools strategically. Apply properties of operations to calculate with numbers in any form; convert between forms as appropriate; and assess the reasonableness of answers using mental computation and estimation strategies.

5 Ratios and Proportional Relationships Course 2, Lesson 2-2 Common Core State Standards © Copyright 2010. National Governors Association Center for Best Practices and Council of Chief State School Officers. All rights reserved. Mathematical Practices 1Make sense of problems and persevere in solving them. 3 Construct viable arguments and critique the reasoning of others. 4Model with mathematics. 5Use appropriate tools strategically.

6 How to: Estimate the percent of a number Find percents greater than 100 or less than 1 Ratios and Proportional Relationships Course 2, Lesson 2-2

7 How did what you learned today help you answer the HOW can percent help you understand situations involving money? Course 2, Lesson 2-2 Ratios and Proportional Relationships

8 How did what you learned today help you answer the HOW can percent help you understand situations involving money? Course 2, Lesson 2-2 Ratios and Proportional Relationships Sample answers: You can use estimation strategies to estimate the percent of a dollar amount.

9 Suppose another class has 120% of the students that are in our class. About how many students are in the other class? Ratios and Proportional Relationships Course 2, Lesson 2-2

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