1 P2.ST.JC.18120723
Level 2
Adam has 100 stickers.
Bryan has 60 stickers.

  1. What is the difference in the number of stickers between Adam and Bryan?
  2. How many stickers must Adam give away to be the same as Bryan?
  3. How many stickers must Bryan get to be the same as Adam?
4 m
W Addition & subtraction Equal stage after Unchanged quantity Model Comparison
2 P6.PC.JC.22031501
Level 2 PSLE
A box contained black balls and green balls. 40% of the balls were green. After some red balls were added to the box, 28% of the balls were green. What percentage of the balls in the box were red?
2 m
Percent of a set Percent to units Percent of different base Unchanged quantity Units table Units & parts Substitution
3 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
4 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
5 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
6 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
7 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
8 P6.RD.TL.16010102
Level 2
1104 people went to a park. 38 were adults. Some children left halfway and the ratio of the number of adults to the number of children became 6 : 7. How many children left the park halfway?
2 m
Fraction to units Ratio to units Unchanged quantity Units table
9 P6.RD.TL.16010101
Level 2
In a room, 57 of the girls wore cardigans. After 86 girls who wore cardigans left the room, the percentage of girls who wore cardigans decreased to 10%. How many girls in the room did not wear cardigans?
2 m
Fraction to units Percent change to Percent to units Unchanged quantity Units table
10 P6.RD.TL.16010103
Level 2
At a stadium, there were 40 children from Club W and 10% more children from Club X. Some children from Club X left and the ratio of the number of children from Club W to the number of children from Club X became 5 : 2. How many children from Club X left?
2 m
Ratio to units Percent of a set More than or less than Unchanged quantity Units table

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