1.
Write 4 · 4 · 4 · 4 · 4 · 4 using exponents.
A.
4
5
B.
4
4
C.
6
4
D.
4
6
Hint
2.
Solve 7
w
= 343.
A.
49
B.
336
C.
51
D.
350
Hint
3.
Write an integer to describe a city 325 feet above sea level.
A.
+325 and |-325|
B.
+325 and -325
C.
-325
D.
+325
Hint
4.
Solve
n
= (-9)
2
.
A.
18
B.
-18
C.
81
D.
-81
Hint
5.
Replace _____ with <, >, or = to make -0.6 _____ -
a true sentence.
A.
=
B.
>
C.
<
D.
None of these is correct.
Hint
6.
Express 0.0000421 in scientific notation.
A.
4.21 × 10
-6
B.
4.21 × 10
-9
C.
4.21 × 10
-4
D.
4.21 × 10
-5
Hint
7.
Evaluate
a
-
b
if
a
=
and
b
=
.
A.
B.
1
C.
D.
-1
Hint
8.
Evaluate 2
8
.
A.
256
B.
512
C.
128
D.
16
Hint
9.
Evaluate |-25|.
A.
-25
B.
25, -25
C.
-5
D.
25
Hint
10.
Choose the correct symbol to make a true statement.
|-10| _____ 10
A.
<
B.
C.
>
D.
=
Hint
11.
Calculate the sum of (-13) and (-11).
A.
2
B.
-2
C.
-24
D.
24
Hint
12.
A hiker begins on top of a mountain that stands 12,500 feet above sea level. He walks down to the valley that is 250 feet below sea level. What is his change in elevation?
A.
-12,250 feet
B.
-12,750 feet
C.
12,250 feet
D.
12,750 feet
Hint
13.
Express
as a fraction.
A.
7
B.
7
C.
7
D.
7
Hint
14.
Order
from least to greatest.
A.
B.
C.
D.
Hint
15.
Solve
r
=
+
.
A.
r
= 1
B.
r
= -1
C.
r
=
D.
r
=
Hint
16.
Evaluate –6|
x
| + 2 if
x
= -5.
A.
-32
B.
32
C.
28
D.
-28
Hint
17.
Which value of
d
makes the sum of
d
and -12 equal 25?
A.
37
B.
-13
C.
-37
D.
13
Hint
18.
Replace ___ with a symbol to make
___
a true sentence.
A.
>
B.
=
C.
none
D.
<
Hint
19.
Solve
=
y
+
.
A.
-
B.
C.
D.
-
Hint
20.
Evaluate
x
2
·
y
3
if
x
= 6 and
y
= 3.
A.
108
B.
1,944
C.
972
D.
324
Hint