Ratios and Simplifying: learn math fun

1. BELLRINGER (DAY 65)

2. Where was the first Thanksgiving? RA – The Mayflower LA – Jamestown, VA RL – Plymouth, MA LL – New York, NY

3. Evaluate two plus nine minus three RA – don’t know LA – I know

4. What bird did Benjamin Franklin want as the national bird? RA – Bald Eagle LA – Turkey RL – Owl LL – Peacock

5. What is four squared? RA – don’t know LA – I know

6. Which President instituted Thanksgiving as a national holiday? RA – Abraham Lincoln LA – Benjamin Franklin RL – George Washington LL – John F. Kennedy

7. What is fifty percent of seventy-five? RA – don’t know LA – I know

8. What is the relationship of girls to boys in class?

9. Vocabulary: ratio A __________ is the relationship of one number to another. There are _________ ways to write a ratio. Example: What’s the ratio of female principals to male principals at JFK? 3 2 to 1 2 : 1 2/1

10. Simplifying Ratios: All ratios must be in simplest terms (reduced) (Divide each number by a common factor) Example: What’s the ratio of continental states to those separated? 48/2 Divide both by which factor? 2 24/1

11. Comparing Ratios: To compare or order, ratios must be in the same format (fractions or decimals) Example: Order from least to greatest… 3:4; 2/7; 9 to 2 Make all fractions 3/4; 2/7; 9/2  Make all decimals 0.75; 0.29; 4.5 21/28; 8/28; 126/28