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Unit 5 Review
Unit 5 Review
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#integers, #math, #parts of an expression, #equivalent expressions, #writing Expressions
Flashcards
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Questions
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Answers
1
Use the distributive property to rewrite the following algebraic expression.
5x + 11
5x + 6
5x + 30
30x
2
In the Order of Operations, which step comes first?
Multiplication
Addition
Parentheses
Exponents
3
Writing Algebraic Expressions
(20 + 25) ⋄ (20 + 30)
20(25 + 30)
(20 + 25) + (20 + 30)
20 + (25 ⋄ 30)
4
Order of Operations
We always go Left to Right no matter what!
The steps we use to simplify math expressions
We always go Right to Left no matter what!
PEMDAS
5
Write an Algebraic Expression
9 + 2
9g - 2
g + 2
9g + 2
6
Evaluate
30
24
-24
-6
7
Evaluate
22
52
8
Write as an algebraic expression
D
B
A
C
9
What does PEMDAS mean?
(), Exponents, X, ÷, Addition, Subtraction
Subtraction, Addition, ÷, X, Exponents and ()
Something? Don't really know
Poodles, Enchiladas, Milk, Dairy, Ants, Scooby Do
10
Write an Algebraic Expression
4/s
s + 4
4 - s
4s
11
What is a COEFFICIENT?
The letters that represent #s.
The parts of an expression.
The person that is sitting next to you.
The number part of a term that has a variable in it.
12
Order of Operations
C
B
A
D
13
Evaluate: g
2
+ 10 when g=12
141
132
154
144
14
What is the CONSTANT, in the expression 20a + 5 ?
20
a
5
20a
15
What is a CONSTANT?
A term that is just a number without the letter.
A term with a number and a letter.
A letter that represents a number.
A + or a -.
16
Write an Algebraic Expression
6/x
x - 6
6x
x + 6
17
Writing Algebraic Expression
m + 23
m - 23
23m
m/23
18
Expressions that have the same value or simplest form
Equivalent Expressions
I don't know
Algebraic Expresssions
Distributive Property
19
What is the COEFFICIENT in the following expression ½v ?
2
1
v
½
20
Apply the order of operations.
10
23
38
218
21
What is the Second Order of Operations?
Multiply and Divide Left to Right
Exponents
Add and Subtract Left to Right
Parentheses
22
A math phrase that includes variables, constants and operations
Inverse operation
Expression
Variable
Constant
23
Math: Coefficient
A number on its own that has a fixed value
A math sentence with an equal sign
The number you see before a variable
A symbol for a number we don’t know yet
24
Simplify by combining like terms.
5y+ 3x
-3y3 + 5x2
8y3
5y3 + 3x2
25
What are the VARIABLES in this expression? 5r - 7s + 8
5, 7, 8
- and +
r and s
5r and 7s
26
Write the verbal expression as an algebraic expression.
-13 + 3x
13 - 3x
13 + 3x
-13 - 3x
27
Which phrase describes the algebraic expression r/9?
9 less than r
the product of r and 9
r more than 9
the quotient of r and 9
28
Order of Operations
13
15
23
35
29
The things in math that DO CHANGE are known as constants
True
False
30
Use the distributive property to write equivalent expressions.
5ab
a + 5b
5a + 5b
5a + b
31
Identify the correct algebraic expression for the statement.
17x + (5 + x)
17 + x + 5 + x
17x + 5x
5x + (17 + x)
32
Variables in Math represent ...
an unknown quantity
letters
33
Simplify. Follow the order of operations.
27
7
15
12
34
In the expression, 5c - 8d + 2, what is the CONSTANT?
5c
2
8d
+
35
Simplify by combining like terms.
17 + 5r
7r + 5r
11r + 17
17 - 5r
36
Junita cuts a board 4 feet long from a board that was X feet long. Which expression represents this situation?
4x
4 - x
x - 4
4 + x
37
Which of the expresions below represents 2(3x+4) + 3(x - 1)
9x + 5
9x + 3
8x + 11
8x + 8
38
4x2+(9\div3)
12
13
14
11
39
What is a variable?
The operations in an expression, like + or -.
The #s of an expression.
A letter or a symbol that represents a number or numbers.
A number that is by itself.
40
What is a coefficient in math?
The number in front of a variable used to multiply the variable
A symbol for a value we don't know yet
Something that is efficient with something else
A number on its own that has a fixed value
41
Parts of Algebraic Expressions separated by addition or subtraction
(operation)
signs are called?
Variables
Exponents
Terms
Perms
42
How many TERMS are in this expression? 6y + 6z - 9x + 8
4
3
2
1
43
Writing Algebraic Expression
10 - a
10 x a
a - 10
10/a
44
Which word expression represents the Algebraic expression 4n?
4 times n
n less than 4
4 divided by n
4 more than n
45
Solve using Order of Operations:
76
46
20
64
46
What is the coefficient? -x
+1
x
-x
-1
47
Variables in math problems are:
Unknown numbers
Large numbers
Awesome
Tricky numbers
48
Writing Algebraic Expressions
y-9/4
y+9/4
(y+9)/4
y+9÷4
49
Simplify by combining like terms.
4y4 - x2 -14y
4y4 - x2 + 14y
4y4 + x2 +14y
4y4 + 2x2 +14y
50
In Math, a Coefficient is...
A number placed in front of a variable
A variable
A type of spider
A number less than zero
51
What is the VARIABLE in the following expression 6u + 12 ?
12
6
u
6u
52
Which words describe the algebraic expression: 13v
13 plus any number, v
thirteen divided by any number, v
thirteen minus any number, v
thirteen times any number, v
53
What is a TERM?
The parts of an expression, separated by a + or - sign.
A letter that stands for a number.
The operations in an expression.
A word that is inserted in an expression.
54
Evaluate the expression if y=3
405
135
20y
60
55
Larry says that (4+2)x(8x6) and (4+2)+(8x6) are equivalent because they have the same digits and same operations.
Larry thinks he knows everything
Larry is incorrect, (4+2)+(8x6) has the greater value
Larry is incorrect, (4+2)x(8x6) has the greater value
Larry is correct , they are equivalent
56
Writing algebraic expressions
2x • 5
5x + 2
2x - 5
5 + 2x
57
Write as an algebraic expression...
5 - c + d
5c + d
d + (c - 5)
(c - 5) + d
58
What is the COEFFICIENT in the following expression 23 - 7x ?
-7
23
x
7x
59
Solve with the order of operations.
5
6
4
3
60
Follow order of operations
d
a
c
b
