Variable expressions Worksheet

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

1 a.   y – 3 + x, when y = 5.9 and x = 7.7
   
 
 
 
 
1 b.  
u – 3.5  , when u = 2.6
9
   
 
 
 
 
2 a.   1 – y, when y = 8.7
   
 
 
 
 
2 b.  
b – 1.4  , when b = 2.3
7.5
   
 
 
 
 
3 a.  
c – 1  , when c = 7.9
4
   
 
 
 
 
3 b.  
u – 4  , when u = 6.9
7
   
 
 
 
 
4 a.  
v – 7.4  , when v = 5.7
4
   
 
 
 
 
4 b.   z + q + 2, when z = 8.9 and q = 2.5
   
 
 
 
 
5 a.   q + a + 6, when q = 8.1 and a = 1.5
   
 
 
 
 
5 b.   x – 8, when x = 2.1
   
 
 
 
 
Page 2

Answer Key



Answers with decimals have been rounded to 3 decimal digits.
1 a.  10.6

 
1 b.  -0.1

 
2 a.  -7.7

 
2 b.  0.12

 
3 a.  1.725

 
3 b.  0.414

 
4 a.  -0.425

 
4 b.  13.4

 
5 a.  15.6

 
5 b.  -5.9

 


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