1. Course 2, Lesson 2-3 Estimate. 1. 48% of 30 2. 8.5% of 268 3. 112% of 49 4. 83% of 79 5. Twenty-two percent of the seventh-grade class at Santa Ana Middle School has blue eyes. If the seventh-grade class has 139 students, about how many have blue eyes? 6. Write an estimate of 128% of 179?

2. Course 2, Lesson 2-3 ANSWERS 1. 15 2. 28 3. 55 4. 64 5. 28 6. 225

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

4. Ratios and Proportional Relationships Course 2, Lesson 2-3 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. Mathematical Practices 1Make sense of problems and persevere in solving them. 3 Construct viable arguments and critique the reasoning of others. 4Model with mathematics.

5. To use the percent proportion to find: the Percent the Part, or the Whole Ratios and Proportional Relationships Course 2, Lesson 2-3

6. Percent Proportion Ratios and Proportional Relationships Course 2, Lesson 2-3

7. Ratios and Proportional Relationships Course 2, Lesson 2-3 Find the percent Find the part Find the whole

8. How did what you learned today help you answer the HOW can percent help you understand situations involving money? Course 2, Lesson 2-3 Ratios and Proportional Relationships

9. How did what you learned today help you answer the HOW can percent help you understand situations involving money? Course 2, Lesson 2-3 Ratios and Proportional Relationships Sample answers: You can use the percent proportion to solve situations involving money.

10. The next lesson will be about solving problems using the percent equation. Predict what the percent equation might look like since it is based on the percent proportion. Ratios and Proportional Relationships Course 2, Lesson 2-3