Variable expressions Worksheet

Find the value of the expressions for the given values of the variable(s).

1 a.  
s – 2  , when s = 1
8
   
 
 
 
 
1 b.   7(4 + 7 u), when u = 10
   
 
 
 
 
2 a.  
9 y + r  , when y = 2
10
   
 
 
 
 
2 b.  
x – 6  , when x = 1
8
   
 
 
 
 
3 a.   (3 x + 3)3, when x = 9
   
 
 
 
 
3 b.  
3 g  , when g = 3 and y = 4
y2
   
 
 
 
 
4 a.   (6 v – 4)4, when v = 4
   
 
 
 
 
4 b.  
9 b  , when b = 4 and n = 2
n2
   
 
 
 
 
5 a.   (4 – 10 y)2, when y = 6
   
 
 
 
 
5 b.  
s – 7  , when s = 8
3
   
 
 
 
 
Page 2

Answer Key

1 a.  -1/8

 
1 b.  518

 
2 a.  2

 
2 b.  -5/8

 
3 a.  27000

 
3 b.  9/16

 
4 a.  160000

 
4 b.  9

 
5 a.  3136

 
5 b.  1/3

 


Copying permission: You are free to copy this worksheet to any number of students for their mathematics work. Do not distribute on websites, books, or any such material without permission. Copyright www.HomeschoolMath.net