What does it really mean?
9x is the same thing as saying 9 ____ x.
What is 9 Times x
What are the order of operations?
What is PEMDAS: Parenthesis/Exponents/Multiplication/Division/Addition/Subtraction
If x=3,
9x
What is 27
if a=2 and b=4
a2+b2
What is 20
if a=3 and b=5,
4ab
What is 60
If x=5,
2(x+5)
What operation do we do first?
What is 5 + 5
When we simplify expression using the order of operations, we do addition/subtraction from _______ to ________
What is left to right
2x+7
8a-5b
What is -4
if a=2 and b=5,
a(2b-3)
What is 14
How would you REWRITE 3x2, if x=5
What is 3(5)2
In the expression, 3(5)2 What operation would we do first?
What is 52
3x2
What is 75
if x=4,
3x2
What is 48
Evaluate the expression for s=(-1), v=8,
sv2 AND (sv)2
What is -64 AND 64
How would you REWRITE 2(x+5) if x= -5
What is 2(-5+5)
What operation would you do FIRST in the following expression if y = 5
2y/2
What is 2 times 5
If x=5,
2(x+5)
What is 20
If x=4,
5x/2
What is 10
Evaluate the formula A=1/2bh
base= 8, height= 2,
What is the Area (A)?
What is the Area=8
What is 2(4)/2
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
if x=5,
2x/2
What is 5
If x=4,
4(3x-2)
What is 40
Evaluate the formula: S.A. = 2Lw + 2Lh + 2wh
length (L) = 4,
width (w)= 3,
and height (h)= 8
What is the Surface Area (S.A.)?
What is the Surface Area = 136