1.
A number is divisible by 6 if ______.
A.
the number is divisible by 2 and 3
B.
the sum of the digits is divisible by 6
C.
the last two digits are divisible by 2 and 3
D.
the ones digit is divisible by 2, and the tens digit is divisible by 3
Hint
2.
Choose a tens digit for 2?6 so that the three-digit number is divisible by 6.
A.
1
B.
0
C.
3
D.
2
Hint
3.
Write the expression 4 · 4 · 4 · 4 · 4 using exponents.
A.
5
5
B.
4
4
C.
4
5
D.
5
4
Hint
4.
Find
y
for
y
=
x
2
- 15 if
x
= 6.
A.
21
B.
49
C.
51
D.
-3
Hint
5.
The number 63 is an example of a ______.
A.
prime factorization
B.
factor tree
C.
prime number
D.
composite number
Hint
6.
Factor 144 completely.
A.
12 · 12
B.
2 · 2 · 2 · 2 · 3 · 3
C.
3 · 3 · 4 · 4
D.
4 · 4 · 9
Hint
7.
Find the greatest common factor of 168 and 288.
A.
24
B.
36
C.
2
D.
48
Hint
8.
Write 0.478 in scientific notation.
A.
478 × 10
1
B.
4.78 × 10
-1
C.
4.78 × 10
2
D.
4.78 × 10
-2
Hint
9.
Factor 7
x
+ 21.
A.
7(
x
+ 3)
B.
7
x
(1 + 21)
C.
7(
x
+ 21)
D.
x
(7 + 21)
Hint
10.
Which fraction is
written in simplest form?
A.
Already simplified
B.
C.
D.
Hint
11.
Eight feet is what part of 10 yards? Write your answer as a fraction in simplest form.
A.
B.
C.
D.
Hint
12.
Find 6
3
· 6
2
.
A.
6
5
B.
36
5
C.
6
6
D.
36
6
Hint
13.
Find (14
b
5
)(-1
b
6
).
A.
14
b
11
B.
-14
b
11
C.
-14
b
30
D.
14
b
30
Hint
14.
Evaluate
x
-4
if
x
= 3.
A.
B.
81
C.
-81
D.
Hint
15.
Evaluate
y
-5
if
y
= -2.
A.
-32
B.
32
C.
D.
Hint
16.
Express 2.629 × 10
7
in standard form.
A.
2,629
B.
2,629,000
C.
0.0000002629
D.
26,290,000
Hint