Evaluate Expressions

What does it really mean?

100

9x is the same thing as saying 9 ____ x.

What is 9 Times x

200

If x=5, 

2(x+5)

What operation do we do first?

What is 5 + 5

300

How would you REWRITE 3x², if x=5

What is 3(5)²

400

What is Ms. McGlaun's favorite sport? 

Football

500

How would you rewrite 2y/2 if y=4

What is 2(4)/2

What comes first?

100

What are the order of operations?

What is PEMDAS: Parenthesis/Exponents/Multiplication/Division/Addition/Subtraction

200

When we simplify expression using the order of operations, we do addition/subtraction from _______ to ________

What is left to right

300

In the expression, 3(5)² What operation would be do first?

What is 5²

400

What operation would you do FIRST in the following expression if y = 5

2y/2

What is 2 times 5

500

What is the name of the letter we are finding the value for? For example what is the name of "x" or "y"?

What is a Variable

Let's Go!

100

If x=3, 

9x

What is 27

200

if x=3,

2x+7

What is 13

300

If x=5

3x²

What is 75

400

If x=5,

2(x+5)

What is 20

500

How many states do Ms. McGlaun have to travel to before she reaches 50?

2

Alaska & Hawaii

Oh yah!

100

if a=2 and b=4

a²+b²

What is 20

200

if a=2 and b=4,

8a-5b

What is -4

300

if x=4,

3x²

What is 48 

400

If x=4,

5x/2

What is 10

500

If x=4,

4(3x-2)

What is 40

Challenge!!!

100

if a=3 and b=5,

4ab

What is 60

200

if a=2 and b=5,

a(2b-3)

What is 21

300

Ms. McGlaun has how many children

3 + 1

400

Evaluate 8r when r=5

40

500

Evaluate 8r * 8c

r=5, c=1

What is 40