21 P5.ST.JC.18121024
Level 2
Adam has 80 red stickers.
He has 2 times as many red stickers than blue stickers.
After he gives away an equal number of red and blue stickers,
the number of red stickers is 3 times that of the blue stickers.
  1. How many red stickers are there in the end?
  2. How many blue stickers are there in the end?
  3. How many stickers are there in the end?
  4. How many stickers does Adam give away?
4 m
Times as many Unchanged difference Units table
22 P5.ST.JC.18121025
Level 2
Adam and Bryan have the same amount of money.
Adam spends $10 and Bryan spends $50.
In the end, Adam has 3 times as much money as Bryan.
  1. How much does each of them have at first?
  2. How much does Adam have more than Bryan in the end?
3 m
More than or less than Times as many Equal stage before All change Units table
23 P5.ST.JC.18121026
Level 2
Adam and Bryan have the same amount of money.
Adam receives $50 and Bryan receives $10.
In the end, Adam has 3 times as much money as Bryan.
  1. How much does each of them have at first?
  2. How much does Adam have more than Bryan in the end?
3 m
More than or less than Times as many Equal stage before All change Units table
24 P5.ST.JC.18121018
Level 3
Adam, Bryan and Chris have 48 stickers.
When Adam gives Bryan some stickers, Bryan's stickers is doubled.
When Bryan gives some stickers to Chris, Chris' stickers is doubled.
In the end, they have the same number of stickers each.
  1. How many does each child have in the end?
  2. How many stickers does Chris have at first?
  3. How many stickers does Bryan have at first?
  4. How many stickers does Adam have at first?
4 m
Times as many Equal stage after Internal transfer Working backwards Units table
25 P5.ST.JC.18121019
Level 3
4 children have some stickers.
Adam's number of stickers is tripled.
Bryan's number of stickers is quadrupled.
Chris' number of stickers is doubled.
David's number of stickers is halved.
In the end, all have 60 stickers each.
  1. How many stickers does Adam have at first?
  2. How many stickers does Bryan have at first?
  3. How many stickers does Chris have at first?
  4. How many stickers does David have at first?
4 m
Fraction of a set Times as many Equal stage after All change Working backwards Units table
26 P5.ST.JC.18121020
Level 3
4 children have the same number of stickers at first.
Adam's number of stickers is tripled.
Bryan's number of stickers is quadrupled.
Chris' number of stickers is doubled.
David's number of stickers is halved.
In the end, they have 950 stickers.
  1. How many stickers does Adam have in the end?
  2. How many stickers does Bryan have in the end?
  3. How many stickers does Chris have in the end?
  4. How many stickers does David have in the end?
4 m
Fraction of a set Times as many Equal stage before All change Working backwards Units table
27 P6.ST.JC.18121401
Level 3
Fill in the blanks.
Adam has 20% more stickers than Bryan and
25% more stickers than Chris.

  1. Who is the repeated identity? Give the answer in number. (Eg Adam = 1; Bryan = 2; Chris = 3)
  2. Number of stickers that Chris has = _____ u
  3. Total number of stickers = _____ u
  4. Difference in the number of stickers between Bryan and Chris = _____ u
4 m
Percent to units Repeated identity Units table
28 P6.ST.JC.18121402
Level 3
Fill in the blanks.
Adam has 20% more stickers than Bryan and
Bryan has 40% more stickers than Chris.

  1. Who is the repeated identity?
    Give the answer in number. (Eg Adam = 1; Bryan = 2; Chris = 3)
  2. Number of stickers that Chris has = _____ u
  3. Total number of stickers = _____ u
  4. Difference in the number of stickers between Adam and Chris = _____ u
4 m
Percent to units More than or less than Repeated identity Units table
29 P6.ST.JC.18121403
Level 3
Fill in the blanks.
Adam has 20% more stickers than Bryan and
30% less stickers than Chris.

  1. Who is the repeated identity?
    Give the answer in number. (Eg Adam = 1; Bryan = 2; Chris = 3)
  2. Number of stickers that Chris has = _____ u
  3. Total number of stickers = _____ u
  4. Difference in the number of stickers between Bryan and Chris = _____ u
4 m
Percent to units Repeated identity Units table
30 P6.ST.JC.18121425
Level 3
Fill in the blanks.
The ratio of adults to children is 1 : 2.
The ratio of boys to girls is 3 : 5.
Use LCM and find the following.

  1. Number of adults = _____ u
  2. Number of boys = _____ u
  3. Difference in the number of boys and girls = _____ u
  4. Total number of people = _____ u
4 m
Ratio to units Combined repeated identity Units table
31 P6.ST.JC.18121427
Level 3
Fill in the blanks in whole numbers or decimals only.
The ratio of adults to children is 1 : 2.
The ratio of boys to girls is 3 : 5.
The number of women to men is 2 : 3.
Let the number of children be 2 u.

  1. Number of adults = _____ u
  2. Number of boys = _____ u
  3. Number of women = _____ u
  4. Difference between the number of boys and women = _____ u
4 m
F Multiplication Combined repeated identity Decimal units Units table
32 P5.RD.JM.17083132
Level 2
A bag contains blue and green marbles in the ratio of 2 : 5. There is a total of 91 marbles in the bag. How many more blue marbles must be added into the bag so that the number of blue marbles will be the same as the number of green marbles?
2 m
Ratio to units More than or less than Equal stage after Units table Unchanged quantity
33 P6.RD.TL.16010153
Level 2
Natalie has 3 times as many buttons as Xuan. Xuan has 23 as many buttons as Fiona. If the three of them have a total of 110 buttons, how many buttons does Natalie have?
2 m
Fraction to units Times as many Repeated identity Units table
34 P4.ST.JC.18120940
Level 3
Adam has 200 red and blue stickers.
He sells 40 red stickers and the number of blue stickers becomes 3 times as many as red stickers.
  1. How many more blue stickers than red stickers does Adam have at first?
  2. How many less red stickers than blue stickers does Adam have in the end?
4 m
Times as many Unchanged quantity Model Comparison Units table
35 P4.ST.JC.18120941
Level 3
Adam has 200 red and blue stickers.
He buys 40 red stickers and the number of red stickers becomes 3 times as many as blue stickers.
  1. How many more red stickers than blue stickers does Adam have at first?
  2. How many less blue stickers than red stickers does Adam have in the end?
4 m
Times as many Unchanged quantity Model Comparison Units table
36 P6.RD.JO.21042212
Level 2 PSLE
Mary has a number of pens in three colours: yellow, orange and purple. 310 of the pens are yellow. The number of yellow pens is twice the number of orange pens. What fraction of the pens is purple?
2 m
Fraction of a set Fraction to units Times as many Repeated identity Units table
37 P6.RA.JC.16010101
Level 2
The ratio of Henry's age to Mark's age is 9 : 5. Last year, their average age was 20. How old will Mark be in 5 years' time?
2 m
Ratio to units Average Units table
38 P4.ST.JC.18120942
Level 3
Adam has 2 times as many red stickers as blue stickers.
He gives away 30 blue stickers.
Adam has 3 times as many red stickers as blue stickers.
  1. How many more red stickers than blue stickers does Adam have at first?
  2. How many less blue stickers than red stickers does Adam have in the end?
4 m
Times as many Unchanged quantity Model Comparison Units table
39 P6.RD.JO.21042226
Level 2 PSLE
At a shop, the price of the blouse is 35 the price of the vest. The price of the dress is half the price of the blouse. What is the ratio of the price of the vest to the price of a dress to the price of the blouse?
2 m
Fraction to units Finding ratio Repeated identity Units table
40 P4.ST.JC.18120943
Level 3
Adam has 3 times as many red stickers as blue stickers.
He buys another 30 blue stickers.
Adam has equal number of red and blue stickers.
  1. How many more red stickers than blue stickers does Adam have at first?
  2. How many blue stickers and red stickers does Adam have in the end?
4 m
Times as many Equal stage after Unchanged quantity Model Comparison Units table

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