Evaluating Expressions Worksheets

Evaluating Expressions Worksheets
  • Page 1
 1.  
Evaluate the expression m + 17 for m = 8.
a.
27
b.
25
c.
23
d.
28


Solution:

m + 17
[Original algebraic expression.]

= 8 + 17
[Replace m with 8.]

= 25

So, m + 17 for m = 8 is 25.


Correct answer : (2)
 2.  
Evaluate the expression k - 4 for k = 12.
a.
8
b.
7
c.
9
d.
6


Solution:

k - 4
[Original algebraic expression.]

= 12 - 4
[Replace k with 12.]

= 8

So, k - 4 for k = 12 is 8.


Correct answer : (1)
 3.  
Evaluate the expression t × 3 for t = 7.
a.
24
b.
21
c.
23
d.
20


Solution:

t × 3
[Original algebraic expression.]

= 7 × 3
[Replace t with 7.]

= 21

So, t × 3 for t = 7 is 21.


Correct answer : (2)
 4.  
Evaluate the expression a ÷ 5 for a = 25.
a.
10
b.
4
c.
25
d.
5


Solution:

a ÷ 5
[Original algebraic expression.]

= 25 ÷ 5
[Replace a with 25.]

= 5

So, a ÷ 5 for a = 25 is 5.


Correct answer : (4)
 5.  
Find the value of 2 + m, if m = 4.
a.
8
b.
7
c.
9
d.
6


Solution:

2 + m
[Original algebraic expression.]

= 2 + 4 = 6
[Replace m with 4.]

So, 2 + m = 6 when m = 4.


Correct answer : (4)
 6.  
Find the value of 23 - n, if n = 6.
a.
19
b.
17
c.
18
d.
20


Solution:

23 - n
[Original algebraic expression.]

= 23 - 6 = 17
[Replace n with 6.]

So, 23 - n = 17 when n = 6.


Correct answer : (2)
 7.  
What is 6 × n, if n = 4?
a.
27
b.
24
c.
25
d.
26


Solution:

6 × n
[Original algebraic expression.]

= 6 × 4 = 24
[Replace n with 4.]

So, 6 × n = 24 when n = 4.


Correct answer : (2)
 8.  
What is 20 ÷ n, if n = 5?
a.
5
b.
7
c.
6
d.
4


Solution:

20 ÷ n
[Original algebraic expression.]

= 20 ÷ 5 = 4
[Replace n with 5.]

So, 20 ÷ n = 4 when n = 5.


Correct answer : (4)
 9.  
Evaluate the expression 2ab - c 3 for a = 2, b = 2 and c = 6.
a.
6
b.
10
c.
14 3
d.
14


Solution:

2ab - c3
[Original expression.]

= (2 x 2 x 2) - 63
[Replace the variables with their values given.]

= 8 - 2
[Simplify.]

= 6
[Subtract.]


Correct answer : (-1)
 10.  
Evaluate the expression for c = 9.
2(c)2 - 3(c)
a.
135
b.
123
c.
162
d.
9


Answer: (a)


Correct answer : (1)

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