1 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
2 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
3 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
4 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
5 P6.RD.JC.16010104
Level 2
At a supermarket, 20% of the fish were guppies and the rest were dory fish. 40% of the dory fish were sold. What was the ratio of the number of dory fish to the number of guppies in the end?
2 m
Finding ratio Percent to units Unchanged quantity Units table
6 P6.ST.JC.18121447
Level 2
Fill in the blanks.
The ratio of Adam's stickers to Bryan's stickers is 2 : 3.
Adam gives 10 stickers away.
The ratio of Adam's stickers to Bryan's stickers becomes 1 : 2.

  1. Whose number of stickers has not changed? Give the answer in number. (Eg Adam = 1; Bryan = 2)
  2. Number of stickers that Bryan has = _____ u
  3. Change in the number of stickers that Adam has = _____ u
  4. 1 u = _____
4 m
Ratio to units Unchanged quantity Units table
7 P6.ST.JC.18121448
Level 3
Fill in the blanks in whole numbers or decimals.
2 boys, Adam and Bryan, share some stickers.
Bryan has 20% of the total.
If Bryan receives extra stickers,
his number of stickers increases by 50%.

  1. Number of stickers that Bryan has at first = _____ u
  2. Change in the number of stickers that Bryan has = _____ u
  3. Number of stickers that Bryan has in the end = _____ u
  4. Number of stickers that Adam has in the end = _____ u
4 m
Percent of a whole Percent change by Percent to units Unchanged quantity Units table Decimal units
8 P6.ST.NK.18121469
Level 3
Fill in the blanks in whole numbers or decimals.
2 boys, Adam and Bryan, share some stickers.
Bryan has 20% of the total.
If Bryan gives away some stickers,
his number of stickers decreases by 25%.

  1. Number of stickers that Bryan has at first = _____ u
  2. Change in the number of stickers that Bryan has = _____ u
  3. Number of stickers that Bryan has in the end = _____ u
  4. Number of stickers that Adam has in the end = _____ u
4 m
Percent of a whole Percent change by Percent to units Unchanged quantity Units table Decimal units
9 P6.RA.TL.16010101
Level 2
The ratio of kiwis to watermelons is 2 : 5. If 304 watermelons were added, the ratio of kiwis to watermelons will be 3 : 17. How many kiwis are there?
2 m
Ratio to units Unchanged quantity Units table
10 P6.ST.JC.18121449
Level 3
Fill in the blanks in whole numbers or decimals.
2 boys, Adam and Bryan, share some stickers.
Bryan has 20% of the total stickers.
If Bryan receives extra stickers,
his number of stickers increases to 30%.

  1. Number of stickers that Bryan has at first = _____ u
  2. Change in the number of stickers that Bryan has = _____ u
  3. Number of stickers that Adam has at first = _____ u
  4. Number of stickers that Adam has in the end = _____ u
4 m
Percent of a whole Percent change to Percent to units Unchanged quantity Units table
11 P6.ST.JC.18121420
Level 3
Fill in the blanks.
Number of boys at first is 30% of the children.
Number of boys is then increased to 40%.

  1. Number of boys at first = _____ u
  2. Number of boys in the end = _____ u
  3. Increase in the number of boys = _____ u
  4. Number of children in the end = _____ u
4 m
Percent to units Percent change to Unchanged quantity Units table
12 P6.RA.TL.16010102
Level 2
The ratio of coconuts to mangosteens is 2 : 7. If 348 mangosteens are added, the ratio of coconuts to mangosteens will be 2 : 11. How many more mangosteens than coconuts are there in the end?
2 m
Ratio to units More than or less than Unchanged quantity Units table
13 P6.ST.JC.18121421
Level 3
Fill in the blanks.
Number of boys at first is 40% of the children.
Number of boys is then decreased to 30%.

  1. Number of boys at first = _____ u
  2. Number of boys in the end = _____ u
  3. Decrease in the number of boys = _____ u
  4. Number of children in the end = _____ u
4 m
Percent to units Percent change to Unchanged quantity Units table
14 P6.RA.JC.17050710
Level 2
Sofie and Thora shared a sum of money in the ratio 2 : 5. After Sofie spent $45, the ratio became 1 : 3. How much money did Thora have?
2 m
Ratio to units Unchanged quantity Units table
15 P6.RA.NK.21060203
Level 1 PSLE
The ratio of the number of vests to that of skirts in a shopping centre was 3 : 2 at first. After 30 skirts were sold, the ratio of the number of vests to that of skirts became 4 : 1. What was the total number of vests and skirts in the shopping centre at first?
2 m
Ratio to units Unchanged quantity Units table
16 P6.RD.TL.16010107
Level 3
At a stall, the ratio of watermelons to coconuts was 8 : 13. After Kate bought two-thirds of the coconuts, there was a total of 111 watermelons and coconuts left at the stall. How many fruits were there at first?
3 m
Fraction to units Ratio to units Unchanged quantity Units table Units manipulation
17 P6.RD.TL.16010108
Level 3
The amount of Isabelle's salary to Sarah's salary is 2 : 9. If Isabelle spends 35 of her salary, she will have $902 less than Sarah. How much salary does Sarah have?
3 m
Fraction to units Ratio to units Money More than or less than Unchanged quantity Units table Units manipulation
18 P6.FR.JC.22100303
TRY FOR FREE
Level 3 PSLE
At first, a bag contained 9 green beads and some black beads. After some green beads were added, 25 of the beads were black . After 56 red beads were added to the bag and now, 29 of the beads were black. What was the number of green beads added?
2 m
Attempt
Fraction to units Unchanged quantity Units table
19 P6.FR.TL.16010102
Level 2
Vincent had 710 as many stamps as Isabelle. After Vincent bought another 30 stamps, he had 15 less stamps than Isabelle. How many stamps did Vincent have at first?
2 m
Fraction to units More than or less than Unchanged quantity Model & units table
20 P6.PC.TL.16010103
Level 3
Some adult passengers are on a coach. If 25 tourists alight from the coach, the percentage of locals will increase from 15% to 40%. How many passengers are there in the coach?
3 m
Percent change to Percent to units Percent of different bases Unchanged quantity Units table

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