1.
Evaluate 2
c
- 4
k
if
c
= 16 and
k
= 5.
A.
52
B.
12
C.
16
D.
18
Hint
2.
Solve
y
- 17 = 24.
A.
41
B.
20
C.
19
D.
7
Hint
3.
Solve 7.53 = 2.76 +
m
.
A.
4.77
B.
10.29
C.
12.35
D.
15.06
Hint
4.
If Julie has
x
strawberries in one sack and four fewer strawberries in another sack, write an expression for how many strawberries are in the second sack.
A.
4 +
x
B.
x
- 4
C.
x
+ 4
D.
4 -
x
Hint
5.
Choose the correct symbol below to make the sentence true.
|-4| ___ 3
A.
<
B.
=
C.
>
D.
none of these
Hint
6.
Solve 18 + (-21) =
f
.
A.
39
B.
-39
C.
3
D.
-3
Hint
7.
Evaluate the expression 3 +
x
+
y
+ (-7) if
x
= -2 and
y
= 5.
A.
1
B.
-2
C.
2
D.
-1
Hint
8.
Write the additive inverse of -10.
A.
10
B.
-10
C.
D.
Hint
9.
The table shows the cost of buying potatoes at the store. Predict the cost of buying ten potatoes.
A.
4
B.
2.5
C.
2.75
D.
3
Hint
10.
If a shirt costs
c
dollars in Store
A
and 5 more dollars in Store
B
, write an expression for the cost of the shirt in Store
B
.
A.
5 –
c
B.
5
c
C.
c
– 5
D.
c
+ 5
Hint
11.
Evaluate |-25|.
A.
25
B.
25, -25
C.
-5
D.
-25
Hint
12.
Solve 17 + (-21) + (-16) + 22 =
x
.
A.
x
= 2
B.
x
= 76
C.
x
= -32
D.
x
= -42
Hint
13.
Solve
f
= 3 – 5.
A.
f
= 8
B.
f
= -2
C.
f
= -8
D.
f
= 2
Hint
14.
Solve
h
= (-6)
2
.
A.
h
= -12
B.
h
= 12
C.
h
= 36
D.
h
= -36
Hint
15.
Solve
t
=
.
A.
t
= -55
B.
t
= -10
C.
t
= 45
D.
t
= 10
Hint
16.
Solve
b
+ 17 = -21.
A.
b
= -38
B.
b
= 38
C.
b
= 4
D.
b
= -4
Hint
17.
Which is a counterexample for the following statement?
The difference of two odd numbers is an odd number
.
A.
7 + 9 = 16
B.
15 - 7 = 8
C.
15 – 4 = 11
D.
12 – 5 = 7
Hint
18.
Which statement is false?
A.
The sum of an even number and an odd number is an odd number.
B.
The product of an even number and an odd number is an odd number.
C.
The sum of two odd numbers is an even number.
D.
The product of two odd numbers is an odd number.
Hint
19.
Write
22 times a number is 110
as an algebraic equation. Let
n
represent the number.
A.
22
n
= 110
B.
22 –
n
= 110
C.
= 110
D.
22 +
n
= 110
Hint
20.
An African elephant calf weighs about 250 pounds at birth. A male adult elephant weighs 12,000 pounds. Which equation can be used to determine the number of pounds the elephant gains in his lifetime? Let
p
represent the number of pounds gained.
A.
250 +
p
= 12,000
B.
250 –
p
= 12,000
C.
250
p
= 12,000
D.
12,000 +
p
= 250
Hint