1.
Which number is
not
a factor of 315?
A.
9
B.
5
C.
2
D.
3
Hint
2.
A number is divisible by 6 if ______.
A.
the ones digit is divisible by 2, and the tens digit is divisible by 3
B.
the sum of the digits is divisible by 6
C.
the number is divisible by 2 and 3
D.
the last two digits are divisible by 2 and 3
Hint
3.
In the expression (-4)
2
, -4 is called the ______.
A.
power
B.
exponent
C.
product
D.
base
Hint
4.
Evaluate the expression 4
n
+
m
2
if
m
= 6 and
n
= 8.
A.
68
B.
88
C.
40
D.
44
Hint
5.
Factor the monomial 36
x
2
y
completely.
A.
2 · 2 · 3 · 3 ·
x
·
x
·
y
·
y
B.
2 · 2 · 3 · 3 ·
x
·
x
·
y
C.
2 · 3 ·
x
·
x
·
y
D.
2 · 2 · 9 ·
x
·
y
Hint
6.
Find the greatest common factor of 64
ab
3
c
2
and 48
a
2
b
2
c
.
A.
16
abc
B.
16
ab
2
c
C.
8
ab
3
c
D.
8
a
2
b
2
c
2
Hint
7.
What is the greatest common factor of 18
mn
2
, 54
m
4
, and 80
n
3
?
A.
2
mn
2
B.
2
C.
9
mn
D.
18
m
2
n
3
Hint
8.
Simplify
A.
B.
2
ab
2
C.
D.
Hint
9.
How would 9.3 × 10
-7
be written in standard form?
A.
0.00000093
B.
930,000,000
C.
93,000,000
D.
0.000000093
Hint
10.
The diameter of a volcanic particle averaged 0.000022 meter. What is this measure written in scientific notation?
A.
2.2 × 10
-5
B.
2.2 × 10
C.
2.2 × 10
5
D.
0.22 × 10
-4
Hint
11.
Factor 50
x
4
y
.
A.
2 · 5
2
·
x
2
·
x
2
·
y
B.
2 · 5 · 5 ·
x
·
x
·
x
·
y
C.
2 · 5 · 5 ·
x
·
x
·
x
·
x
·
y
D.
2 · 5
2
·
x
4
·
y
Hint
12.
Which fraction is
written in simplest form?
A.
B.
Already simplified
C.
x
2
yz
D.
Hint
13.
Which fraction is
written in simplest form?
A.
B.
C.
Already simplified
D.
Hint
14.
Find (-3
y
3
)(4
y
2
).
A.
-12
y
6
B.
12
y
5
C.
12
y
6
D.
-12
y
5
Hint
15.
Evaluate
x
-4
if
x
= 3.
A.
B.
81
C.
-81
D.
Hint
16.
Evaluate
y
-5
if
y
= -2.
A.
B.
32
C.
D.
-32
Hint