3866 P5.ST.JC.18121106
Level 2
Adam and Bryan have some stickers in the ratio of 3 : 2.
When Adam gives away 40 stickers,
the ratio of the stickers becomes 1 : 3.
  1. How many stickers do they have at first?
  2. How many stickers do they have in the end?
3 m
Ratio to units Unchanged quantity Units table
3867 P4.ST.JC.18121055
Level 3
30 students share some stickers.
Each girl gets 4 stickers.
Each boy gets 5 stickers.
In total, the girls get 30 more stickers than the boys.
  1. How many boys are there?
  2. How many girls are there?
  3. How many stickers do the boys get?
  4. How many stickers do the children get?
4 m
Make supposition
3868 P6.ST.JC.18121342
Level 3
5 u - 1 = 7 p
3 u - 16 = 3 p

Find the following values.
  1. 1 u
  2. 1 p
3 m
W 4 operations Units & parts Substitution
3869 P6.RD.NK.21060209
Level 3 PSLE
On Saturday, the number of adults to boys to girls visiting a zoo was 3 : 6 : 5. On Sunday, the number of adults visiting the zoo remained the same. However, the number of boys increased by 50% and the number of girls decreased by 20%.
  1. What was the ratio of the number of adults to boys to girls visiting the zoo on Sunday?
  2. On Saturday, 572 boys and girls visited the zoo. What was the total number of visitors at the zoo on Sunday?
3 m
Finding ratio Ratio to units Percent change by All change Units table
3870 P6.RA.TL.16010145
Level 3
The ratio of the number of boys to the number of girls in a class is 3 : 5. The ratio of the pupils in the class who scored distinction to those who did not score distinction is 4 : 1. The ratio of the boys who scored distinction to those who did not score distinction is 14 : 1. What is the ratio of girls who scored distinction to the girls who did not score distinction?
3 m
Finding ratio Unchanged total Units table Units manipulation

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