1.
Choose a tens digit for 2?6 so that the three-digit number is divisible by 6.
A.
2
B.
1
C.
0
D.
3
Hint
2.
Determine which expression is not a monomial.
A.
12
w
(
xy
+
z
)
B.
ab
C.
17
p
(-
qr
)
D.
-14(-
st
)(3
u
)
Hint
3.
Write the expression 4 · 4 · 4 · 4 · 4 using exponents.
A.
4
4
B.
5
5
C.
4
5
D.
5
4
Hint
4.
Write x
6
as a multiplication expression.
A.
6
x
B.
C.
6 · 6 · 6 · 6 · 6 · 6
D.
x
·
x
·
x
·
x
· x ·
x
Hint
5.
Factor 144 completely.
A.
3 · 3 · 4 · 4
B.
2 · 2 · 2 · 2 · 3 · 3
C.
12 · 12
D.
4 · 4 · 9
Hint
6.
Find the greatest common factor of 64
ab
3
c
2
and 48
a
2
b
2
c
.
A.
16
abc
B.
8
a
2
b
2
c
2
C.
16
ab
2
c
D.
8
ab
3
c
Hint
7.
What is the greatest common factor of 18
mn
2
, 54
m
4
, and 80
n
3
?
A.
9
mn
B.
2
mn
2
C.
18
m
2
n
3
D.
2
Hint
8.
Write the ratio 24 to 96 in simplest form.
A.
B.
C.
D.
Hint
9.
Which fraction can be expressed as
in simplest form?
A.
B.
C.
D.
Hint
10.
Write
in standard form.
A.
3,576,820
B.
357,682
C.
0.357682
D.
3.57682
Hint
11.
The diameter of a volcanic particle averaged 0.000022 meter. What is this measure written in scientific notation?
A.
2.2 × 10
B.
2.2 × 10
5
C.
2.2 × 10
-5
D.
0.22 × 10
-4
Hint
12.
Factor 50
x
4
y
.
A.
2 · 5
2
·
x
4
·
y
B.
2 · 5 · 5 ·
x
·
x
·
x
·
x
·
y
C.
2 · 5
2
·
x
2
·
x
2
·
y
D.
2 · 5 · 5 ·
x
·
x
·
x
·
y
Hint
13.
Find
A.
10
12
B.
10
2
C.
1
12
D.
1
2
Hint
14.
Find
A.
x
3
B.
1
3
C.
1
8
D.
x
8
Hint
15.
Write the expression 5
-4
using a positive exponent.
A.
-5
4
B.
C.
D.
5
4
Hint
16.
Evaluate
y
-5
if
y
= -2.
A.
-32
B.
C.
32
D.
Hint