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Unit 3 review
Write the following expression in standard form: c3
evaluate the expression: (1/2)3
Unit 3 review
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Answers
1
evaluate the expression: (1/2)
3
3/6
1 1/2
1/8
1/2
2
Write the following expression in standard form: c
3
3c
c·c·c
3
when an expression is written with a base and an exponent
base
exponential form
standard form
exponent
4
write an expression for the following phrase: 6 into e
6e
6/e
6 + e
e/6
5
See question below.
6 + 3r
9r
3r
(6 + 3)r
6
write an expression for the following phrase: 9 increased by f
f + 9
f - 9
9 + f
9 - f
7
are the following expressions equivalent or not equivalent: 6(a + 2) and 6a + 12
equivalent
not equivalent
8
evaluate the expression using the order of operations: (4 + 5)
2
- 20
100
4
61
9
9
are the following expressions equivalent or not equivalent: 3c
3
= 216 for c = 2
equivalent
not equivalent
10
to replace a variable with a number or another expression
equivalent
expression
substitution
evaluate
11
what symbol do you use for the math phrase increased by?
+
-
∙
÷
12
use substitution to evaluate the expression: 5a
2
for a = 3
45
30
60
225
13
when an expression is written in expanded form (4·4·4)
exponential form
standard form
exponent
base
14
write and expression for the following phrase: k taken away from 12
k + 12
12 + k
k - 12
12 - k
15
Write an expression for the table.
n + 2
2n + 1
3n - 1
n + 3
16
what symbol do you use for the math phrase squared?
∙
3
2
÷
17
a mathematical phrase that contains operations, numbers, and/or variables
substitution
expression
exponent
algebra
18
the number that indicates how many times to use the base as a factor
order of operations
base
exponent
expression
19
evaluate the expression using the order of operations: 6 + (20 - 4
2
) ∙ 2
20
256
14
520
20
a rule for evaluating expressions (PEMDAS)
GCF
product
sum
order of operations
21
rewrite the expression using the distributive property: 3a(a + 7)
3a + 21a
3a2 + 21
3a2 + 21a
3a2 + 10a
22
Write the following expression in exponential form: f·f·f·f
4f
f4
23
Write an expression for the table.
p + 10
p + 1
p/10
10p
24
the number that is multiplied by a variable in an algebraic expression
exponent
coefficient
constant
product
25
the number that is raised to a power
squared
base
cubed
exponent
26
write an expression for the following phrase: the product of x and 8
8xx
8x
x ∙ 8
8 ∙ x
27
an expression that contains only numbers and operations
constant
algebraic expression
numerical expression
exponent
28
rewrite the expression using the distributive property: 16n + 12n
2
4n2(4 + 3)
4n(4 + 3n)
4(4n + 3n2)
2n(8 + 6n)
29
an expression that contains at least one variable
exponent
numerical expression
algebraic expression
constant
30
a letter or symbol used to represent a number that can change
expression
numerical expression
variable
algebraic expression
31
what symbol do you use for the math phrase into?
∙
-
+
÷
32
what symbol do you use for the math phrase less than?
÷
·
+
-
33
See question below.
w + 8
8w
w - 8
w/8
34
are the following expressions equivalent or not equivalent: a ∙ a ∙ a ∙ a and 4a
equivalent
not equivalent
35
use substitution to evaluate the expression: 4.5n + 6m for n = 2 and m = 3
66.53
25.5
67.52
27
