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# Pemdas

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### Pemdas

1. 1. Tuesday, August 16th<br /><ul><li>Happy Monday!
2. 2. Complete Warm Up
3. 3. Write down Homework</li></ul>Warm Up <br />What Operation Should you do first?<br />1. (3-4) + 6 •6 2. 3 • 5 ÷ 3 <br />
4. 4. When’s the Test?!?!?!<br />Remember your goals  <br />
5. 5. Corny Joke of the Day<br />What did the Atlantic Ocean say to the pacific ocean?<br />Nothing they just waved<br />
6. 6. “To the Computer & Beyond”<br />What questions do you have?!?!?!<br />
7. 7. Finish Quiz <br /> Answer Sheet on top<br />Silent read until everyone is finished<br />Keep folders up please <br />
8. 8. A little Mathematical Rap….<br />
9. 9. Table of Contents<br />Date: 8/16 <br />Section: 1-4<br />Title: Order of Operations<br />Pages: 8-10<br />
10. 10. The Rules<br />“Please Excuse My Dear Aunt Sally”<br />P: Parentheses, Brackets, Braces, square Roots, and Absolute Value<br />E: Exponents<br />M/D: Multiplication/Division<br />A/S: Addition/Subtraction<br />
11. 11. Example 1<br />Example 2<br />-4+5-6+3<br />Do I subtract first?<br />Do I add first?<br />Why?<br />*Addition and Subtraction are equal- they follow left to right<br />12 ÷ 3 x 5<br />Do I divide first?<br />Do I multiply first?<br />Why?<br />*Multiplication and Division are equal-they follow left to right<br />II. The Equal ones <br />
12. 12. III. Let’s Try it Together!<br />Write and solve <br />5(1-2) – (3-2)<br />-9 – (-18) + 6 <br />
13. 13. Hint: Rewrite after each step! <br />(5-2) + 3 • 7 - 8<br />
14. 14. Hint #2: Write PEMDAS at the top<br />(3-4) -4 • 6<br />
15. 15. You Try!<br />1. 8 + 7 • 6<br />2. 50 – 10 • 3 + 2 <br />4 - 1 + (6+3)<br />
16. 16. IV. Challenge problems<br />Work from the Inside Out!<br />Hot to cold<br />
17. 17. Example 1<br />WATCH FIRST<br />
18. 18. You Try! <br />BEEEEEE Careful<br />
19. 19. Classwork: Picasso meets Einstein<br />PEMDAS foldable<br />Grab a piece of construction paper<br /> Fold not quite in half <br />cut in four equal parts <br /> Label side: Order of Operations<br />
20. 20. The Tabs<br />Label P Please parentheses<br />Label E Excuse exponents<br />Label MD My Dear multiply/Divide<br /> Label AS Aunt Sally Add/Subtract<br />
21. 21. P parantheses<br />• (4 + 5)<br />• 9<br />=18<br />
22. 22. E exponents<br />3 + (2-1)<br />9 + 1 <br />=10<br />
23. 23. MD multiply/Divide<br />÷ 2 • 4<br />• 4<br />= 24<br />
24. 24. AS Addition/Subtraction<br />12 • 2 - (3-2) + 3<br />• 4 - 1 + 3<br />- 1 + 3<br />47 + 3 <br />=50<br />