1.
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 last two digits are divisible by 2 and 3
C.
the number is divisible by 2 and 3
D.
the sum of the digits is divisible by 6
Hint
2.
Choose a tens digit for 2?6 so that the three-digit number is divisible by 6.
A.
3
B.
0
C.
1
D.
2
Hint
3.
Solve
x
= 3
4
.
A.
x
= 81
B.
x
= 12
C.
x
= 64
D.
x
= 27
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.
What is the greatest common factor of 45, 75, and 135?
A.
5
B.
25
C.
15
D.
9
Hint
6.
Simplify
A.
B.
C.
D.
Hint
7.
Write
in simple form.
A.
B.
C.
D.
Hint
8.
Evaluate the expression 5
n
4
m
-2
if
m
= 6 and
n
= 3.
A.
-20
B.
C.
D.
-5
Hint
9.
Factor 50
x
4
y
.
A.
2 · 5
2
·
x
2
·
x
2
·
y
B.
2 · 5 · 5 ·
x
·
x
·
x
·
x
·
y
C.
2 · 5
2
·
x
4
·
y
D.
2 · 5 · 5 ·
x
·
x
·
x
·
y
Hint
10.
Factor 39
x
2
y
3
.
A.
39 ·
x
·
x
·
y
·
y
·
y
B.
3 · 13 ·
x
·
x
·
y
·
y
·
y
C.
3 · 13 ·
x
2
·
y
2
·
y
D.
3 · 13 ·
x
·
y
·
y
·
y
Hint
11.
Find the GCF of 3
x
2
y
2
and 15
xy
.
A.
3
x
2
y
2
B.
3
x
y
2
C.
3
xy
D.
3
x
2
y
Hint
12.
Find 6
3
· 6
2
.
A.
6
5
B.
6
6
C.
36
5
D.
36
6
Hint
13.
Find
x
7
·
x
4
.
A.
x
28
B.
xx
11
C.
xx
28
D.
x
11
Hint
14.
Evaluate
y
-5
if
y
= -2.
A.
B.
C.
32
D.
-32
Hint
15.
Express 3.456 × 10
-4
in standard form.
A.
0.0003456
B.
34,560
C.
0.3456
D.
0.003456
Hint
16.
Express 35,329 in scientific notation.
A.
3.5329 × 10
5
B.
35.329 × 10
3
C.
3.5329 × 10
-4
D.
3.5329 × 10
4
Hint