Do Now 9/8/10Do Now 9/8/10 Take out HW from last night.

Text p.5-7, #4-52 multiples of 4

Copy HW in your planner. Text p. 10-11, #2-32 even

In your journal answer the following.In your journal answer the following.

If If 26 = L. of the A.26 = L. of the A. means means 26 letters of the alphabet26 letters of the alphabet, how many of the following , how many of the following “equations” can you translate? “equations” can you translate?

24 = H in a D.24 = H in a D.

90 = D. in a R.A.90 = D. in a R.A.

18 = H. on the G.C.18 = H. on the G.C.

8 = P. in the S.S.8 = P. in the S.S.

1000 = W. that a P. is W.1000 = W. that a P. is W. Hours in a DayHours in a Day

Degrees in a Right AngleDegrees in a Right Angle

Holes on the Golf CourseHoles on the Golf CoursePlanets in the Solar SystemPlanets in the Solar System

Words that a Picture is WorthWords that a Picture is Worth

HomeworkText p. 5-7, #4-52 multiples of 4

4). 2.4

8). 4.5

12). 1/3

16). Twelve to the fifth

power;

20). One half to the

eighth power;

24). 0.4 was multiplied by

two instead of squared;

0.16

28). 1

32). 64

36). 16/81

40). 17.4

44). C

48). 30 m

52). C

1212121212

2

1

2

1

2

1

2

1

2

1

2

1

2

1

2

1

Evaluate the Expression

3 + 7 x 3

3 + 7 = 10

10 x 3 = 30307 x 3 = 21

3 +21 = 2424

Objective

SWBAT use the order of operations to evaluate expressions.

Section 1.2, Order of Operations

Order of OperationsOrder of Operations – the rules established to evaluate an expression involving more than one operation

4(y² – 8) 13 * 2

2 - 14 5 ÷ x · 6

Evaluate expressions within grouping signs. ( ) parentheses or [ ] brackets

Evaluate powers.

Multiply and divide from left to right.

Add and subtract from left to right.

11

33

44

PPEEMDMDASAS

22

Order of Operations

Evaluate the ExpressionPPEEMDMDASAS

4 + 7 x4 + 7 x 334 + 4 + 2121

2525

²²2 + 7 x2 + 7 x 33

Evaluate the Expression

[2 x (4 + 4)] +[2 x (4 + 4)] + 33

PPEEMDMDASAS

[2 x 8] + 3

16 + 3

43

³³

³³

³³16 + 27

Evaluate the expressions when m = 3.Evaluate the expressions when m = 3.

a. (1 + m²) Substitute.Substitute.

Evaluate power.Evaluate power.

b. m³ – 6 ÷ 6 Substitute.Substitute.

Evaluate power.Evaluate power.

Divide.Divide.

(1 + 3²)

3³ – 6 ÷ 6

(1 + 9)10 Add within parentheses.Add within parentheses.

27 – 6 ÷ 6

Subtract.Subtract.

27 – 126

Divide.

Evaluate power.27 32 2 – 3 = 27 9 2 – 3

27 9 2 – 3 = 3 2 – 3

3 2 – 3 = 6 – 3 Multiply.

Multiply and divide from left to right.

STEP 3

Evaluate the expression 27 32 2 3.–

There are no grouping symbols, so go to Step 2.

STEP 1

Evaluate powers.

STEP 2

STEP 4

Add and subtract from left to right.

6 – 3 = 3 Subtract.

ANSWER

The value of the expression 27 32 2 – 3 is 3.

24 – (9 + 1)

= 2[9]

Evaluate the expression.

a. 7(13 – 8) == 35

Subtract within parentheses.

Multiply.

b. 24 – (32 + 1) = Evaluate power.

= 24 – 10 Add within parentheses.

= 14 Subtract.

c. 2[30 – (8 + 13)] = Add within parentheses.

Subtract within brackets.

=18 Multiply.

7(5)

2[30 – 21]

Evaluate the expression when x = 4.

9x3(x + 2)

Substitute 4 for x.

Add within parentheses.

1836= Multiply.

= 2 Divide.

= 9 4

3(4 + 2)

3 6 9 4

=

2424

Text p. 10-11, #2-32 evenHomeworkHomework