Variable expressions Worksheet

Evaluate the expressions for the given values of the variable(s).

1 a.  
c – 2.3  , when c = 8
10.8
   
 
 
 
 
1 b.   c + 2 + n, when c = 5.8 and n = 8.5
   
 
 
 
 
2 a.   q2, when q = 5
   
 
 
 
 
2 b.  
c – 5  , when c = 4.9
9.5
   
 
 
 
 
3 a.  
q – 1  , when q = 2.9
4.8
   
 
 
 
 
3 b.  
c – 6  , when c = 10.8
7.8
   
 
 
 
 
4 a.   6 + q, when q = 6.8
   
 
 
 
 
4 b.  
u – 8  , when u = 5.1
2
   
 
 
 
 
5 a.  
c – 3.1  , when c = 5.8
7.7
   
 
 
 
 
5 b.   w + g, when w = 3.6 and g = 7.5
   
 
 
 
 
Page 2

Answer Key



Answers with decimals have been rounded to 3 decimal digits.
1 a.  0.528

 
1 b.  16.3

 
2 a.  25

 
2 b.  -0.011

 
3 a.  0.396

 
3 b.  0.615

 
4 a.  12.8

 
4 b.  -1.45

 
5 a.  0.351

 
5 b.  11.1

 


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