Variable expressions Worksheet

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

1 a.   t – 7, when t = 3.9
   
 
 
 
 
1 b.  
g – 5  , when g = 10.7
5
   
 
 
 
 
2 a.  
q – 7  , when q = 7.5
6
   
 
 
 
 
2 b.  
a – 4  , when a = 3.1
9.2
   
 
 
 
 
3 a.  
a – 5  , when a = 2.5
9
   
 
 
 
 
3 b.  
2 , when y = 5.6
y
   
 
 
 
 
4 a.   8 + b, when b = 3.3
   
 
 
 
 
4 b.  
r – 7.2  , when r = 8.9
10
   
 
 
 
 
5 a.   4 v, when v = 5.5
   
 
 
 
 
5 b.  
b – 7.7  , when b = 1.2
8.7
   
 
 
 
 
Page 2

Answer Key



Answers with decimals have been rounded to 3 decimal digits.
1 a.  -3.1

 
1 b.  1.14

 
2 a.  0.083

 
2 b.  -0.098

 
3 a.  -0.278

 
3 b.  0.357

 
4 a.  11.3

 
4 b.  0.17

 
5 a.  22

 
5 b.  -0.747

 


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