Learning Resources

Adding and Subtracting Fractions

Answers to Self Test

1 (a)         (b)  4       (c)  -5      (d)  -2

   (e)  3     (f) 

2 (a)  1           (b)           (c) 

3 (a)        (b)           

4 (a)

   (b) The points should not be connected because only whole bundles are sold.

   (c) Domain ={0 £  Day £  7, Day Π W}

         Range = {2£  Total Tons  £  7 , Total Tons Î Q}