2. Do Now 9/9/11 Copy HW in your planner. Copy HW in your planner.  Text p. 9 & 10, #8-32 evens, #43-45 all In your journal, simplify the following expression. Explain your thought process. In your journal, simplify the following expression. Explain your thought process. 3 + 7 x 3 3 + 7 x 3

3. Evaluate the Expression 3 + 7 x 3 3 + 7 = 10 10 x 3 = 3 33 30 7 x 3 = 21 3 +21 = 2 22 24

4. Objective SWBAT use the order of operations to simplify numerical expressions.

5. Numerical expression consists of numbers and operations 9 + 8 6(10) 4 - 9 5 ÷ 2 Section 1.1, Order of Operations

6. Order of Operations – the rules established to simplify an expression involving more than one operation (4 + 7 · 6)² 10 ÷ 2 · 6

7. 1 3 4 PEMDAS 2 Order of Operations Perform operations within grouping signs. ( ) parentheses, [ ] brackets, fraction bars Evaluate powers. Multiply and divide in order from left to right. Add and subtract in order from left to right.

8. Simplify the Expression PEMDAS 18 - 8 10 10 18 - 2 · 4

9. Simplify the Expression PEMDAS 9 · 4 36 36 18 ÷ 2 · 4

10. POWER the result of repeated multiplication of the same factor 3 4 BASE EXPONENT Repeated Multiplication (Factors) Words three to the three to the fourth power Remember this???

11. Simplify the Expression PEMDAS 4 + 7 · 3 4 + 21 25 25 ² 2 + 7 · 3

12. Simplify the Expression PEMDAS 12 – 7 14 + 6 Grouping symbol (14 + 6) ÷ (12 – 7) 20 ÷ 5 4

13. Simplify the Expression [2 x (4 + 4)] + 3 PEMDAS [2 x 8] + 3 16 + 3 43 ³ ³ ³ 16 + 27

14. Simplify the Expression [(4 +12 ÷ 4) – 2] PEMDAS [(4 + 3) – 2] [7 – 2] 125 ³ ³ ³ 5 ³

15. What Did We Learn Today? Numerical expression POWER EXPONENT BASE PEMDAS Order of Operations

16. Text p. 9 & 10, #8-32 evens, #43-45 all Homework Scavenger Hunt