1. Do Now 9/13/10 Be ready to copy Problem of the Week.
Take out HW from Wednesday.
Text p , #14-32 evens & 36
Copy HW in your planner.
Text p. 19, #10-36 evens
Quiz sections Thursday
Be ready to copy Problem of the Week.

2. Homework Text p.12-13, #14-32 evens & 36
14).
16).
18).
20).
22). 2 to the 5th power;
24). 12 to the 3rd power (12 cubed);
26). 4 to the 4th power;
28) to the 4th power;
30). 49; 0.16
32) ;
36). a in³; b lb

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

4. Objective SWBAT use the order of operations to evaluate expressions.
In your journal answer the following question. Suppose “#” is a special operation that “a # b” means 4a – 2b. What is 3 # 2? What is 2 # 3? Is # a commutative operation?

5. Section 1.3, Order of Operations
the rules established to evaluate an expression involving more than one operation
5 ÷ x · 6
13 *
4(y² – 8)

6. 1 2 3 4 PEMDAS Order of Operations
Evaluate expressions within grouping signs.
( ) parentheses, [ ] brackets, fraction bars
Evaluate powers.
Multiply and divide from left to right.
Add and subtract from left to right. 1 2 3 4

7. Evaluate the Expression
PEMDAS
2 + 7 x 3
4 + 7 x 3
4 + 21 25

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

9. a. (1 + m²) (1 + 3²) (1 + 9) 10 b. m³ – 6 ÷ 6 3³ – 6 ÷ 6 27 – 6 ÷ 6
Evaluate the expressions when m = 3.
a. (1 + m²)
(1 + 3²)
Substitute.
(1 + 9)
Evaluate power. 10
Add within parentheses.
b. m³ – 6 ÷ 6
3³ – 6 ÷ 6
Substitute.
27 – 6 ÷ 6
Evaluate power.
27 – 1
Divide. 26
Subtract.

10. Evaluate the expression 27 32 2 3. –
STEP 1
There are no grouping symbols, so go to Step 2.
STEP 2
Evaluate powers.
– 3 = – 3
Evaluate power.
STEP 3
Multiply and divide from left to right.
– 3 = – 3
Divide.
STEP 4
– 3 = 6 – 3
Multiply.
Add and subtract from left to right.
6 – 3 = 3
Subtract.
ANSWER
The value of the expression – 3 is 3.

11. Evaluate the expression.
7(5)
Subtract within parentheses. = 35
Multiply. b.
Rewrite fraction as division.
Evaluate within parentheses.
Divide.
c. 2[30 – (8 + 13)] =
2[30 – 21]
Add within parentheses. =
2[9]
Subtract within brackets. = 18
Multiply.

12. Evaluate the expression when x = 4.
9 4
3(4 + 2)
Substitute 4 for x.
3 6
9 4 =
Add within parentheses. 18 36 =
Multiply. = 2
Divide.

13. 24
NJASK7 Prep
Homework
Text p. 19, #10-36 even