Name : ____________________    Date   : _____________

                                                          Score : _____________

Write down your correct answer and show your workings:

  1)  A garden measuring 12m by 6m has a 2m wide path around it.
       (a) What is the area of the garden?
       (b) What is the area of the pathway?

    Ans: (a)____________________

    Ans: (b)____________________
 
 

  2)  Don had 4 times as much money as Mei Mei. 
       After he gave $9 to Mei Mei and spent $15, Don and Mei Mei had the same amount of money. 
       How much money did Don have at first?
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

  3) The table below shows the number of students form 5 classes attending a camp. 
       If all the students are grouped into teams of 5 students each, 1 students is left out. 
       If they are grouped into teams of 7 students each, 5 students are left out. 
       What is the least number of student campers from class 5B?
 

Classes	Number of student campers
5A	33
5B	?
5C	25
5D	12
5E	7

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

  4)  Timothy and Clare had $672 altogether. 
       When Timothy gave Clare $35, Clare had six times as much money as Timothy. 
       How much money had Clare than Timothy at first?
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

  5)  Adrian had a piece of wire 300 cm long. 
       He bent the wire into a figure shown below. 
       How much wire had he left? 
       (Note: All the lines meet at right angles)

Answers:

  1) a) Garden = 12 x 6 = 72 m2
      b) 12 + 2 + 2 = 16
           6 + 2 + 2 = 10
          10 x 16 = 160
          Pathway = 160 - 72 = 88 m2

  2) Spent 15    Gave Mei Mei 9    Don = Mei Mei = 9
      15 + (9 + 9) =33
      3u = 33
      1u = 33 / 3 = 11
      Don 4 times of Mei Mei = 11 x 44 = $44
      Don have $44 at first.

  3)  Total = 77 + ?
       Group 5 and 7 means need to be able to divide by 5 and 7
       Guess and check method:
       For start use 77 + 5 + 7 = 89
       89 - 1 = 88   Failed (cannot divide by 5 or 7)
       90 - 1 = 89   Failed
       91 - 1 = 90   Pass    (can be divided by 5)
       91 - 5 = 86   Failed (cannot be divided 7) 
       92 - 1 = 91   Failed (cannot be divided 5) 
       93 - 1= 92    Failed
       94 - 1 = 93   Failed
       95 - 1 = 94   Failed
       96 - 1  = 95  Passed (can be divided by 5)
       96 - 5 = 91   Passed (can be divided by 7)
       96 - 77 = 19
       There are 19 student campers in class 5B

  4) 672 / 7 = 96
      96 x 6 = 576
      576 - 35 = 541
      96 + 35 = 131
      541 - 131 = $410

  5) 33 - 7 = 16
      48 - 17 = 31
      33 + 28 + 16 + 22 + 48 + 22 + 31 + 28 = 288
      300 - 228 = 72 cm

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