Name : ____________________    Date   : _____________

                                                      Score : _____________

Write down your correct answer and show your workings:

  1)  Joan bought 5/6 kg of flour.  She used 1/6 kg of flour to make pancakes and 1/2 kg of
       flour to make muffins.  How many kilograms of flour had she left?
       (Express your answer in the simples form.)
 
 
 
 
 
 
 
 
 
 
 
 
 
 

  2)  Mr Tan earned $88 000 last year.  Mr Lim earned $950 less than Mr Tan and Mr Wong
       earned $2 950 more than Mr Lim. 
       How much did Mr Wong earned?
 
 
 
 
 
 
 
 
 
 
 
 
 
 

  3)  Noraini used 4/5 m of a piece of cloth to make a blouse. She made a skirt which
       required 3/10 m more cloth than the blouse.
       How many metres of cloth did she use altogether?
           (Give your answer in the simples form.)
 
 
 
 
 
 
 
 
 
 
 
 
 
 

  4)  Three watermelons cost as much as 2 durains. 
       Uncle Sam paid $108 for 6 watermelons and 5 durians.
       How much did 1 durian cost?
 
 
 
 
 
 
 
 
 
 
 
 
 
 

  5)  Amelia had 25 boxes of peaches, each containing 48 peaches. 
       She gave away 300 of them and put the rest equally into 6 cartons.
       How many peaches were there in each carton?
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Answers:

  1) 1/2 x 3 = 3/6
     3/6 + 1/6 = 4/6
     5/6 - 4/6 = 1/6
    She had 1/6 kg of flour left.

  2) 88 000 - 950 = 87 050
      S87 050 + 2 950 = 90 000

  3) 4/5 x 2 = 8/10
      8/10 + 3/10 = 11/10
      She used 1 1/10 metres of cloth altogether.

  4) 6 watermelons and 5 durians = 108
      4 d + 5 d = 9 d
      108 / 9 = 12
      1 durian cost $12

  5) 25 x 8 = 1200
      1200 - 300 = 900
      900 / 6 = 150
      There were 150 peaches in each caron.

Main Menu : Mathematics Exercise for Primary Four