81 P6.RD.TL.16010154
Level 3
Olivia has 60% as many erasers as Penny. Penny has 180% as many erasers as Kate. If Penny gives 30 erasers to Kate, both will then have an equal number of erasers. Find the average number of erasers the three of them have.
3 m
Percent to units Average Equal stage after Internal transfer Units table
82 P6.RD.TL.16010109
Level 3
Queenie and Violet collect pens. Queenie gave 50% of her pens to Violet and as a result, Violet's pens increased by 40%. If Queenie has 84 pens left, find the number of pens Violet must give to Queenie in the end so that they have equal number of pens.
3 m
Percent change by Percent to units Equal stage after Internal transfer Units table
83 P6.AN.NK.17051759
Level 2
In the figure, not drawn to scale, ABCD is a parallelogram. ∠CDE and ∠BAE are equal. Find ∠x.
2 m
Parallelogram Interior angles Equal stage
84 P4.DA.JM.17092707
Level 3
A fruit seller displayed the same amount of each type of fruits for sale every morning from Monday to Saturday in a week. She charted each type of fruits which were left unsold at the end of the week as shown in the graph.
  1. Which type of fruit was the most popular?
  2. If she had 720 fruits in the beginning of the week, how many fruits did she sell in the week?
3 m
Bar graph Min-max Time Equal stage before
85 P5.RD.JM.17083126
Level 3
At first, Beaker A and Beaker B contained 0.6 ℓ and 1.6 ℓ of water respectively. Some water from Beaker B was poured into Beaker A with no water spilling over. In the end, there was as much water in Beaker A as in Beaker B. How much water was poured from Beaker B to Beaker A?
3 m
D 4 operations Volume Equal stage after Internal transfer Unchanged total Units table
86 P4.DA.JM.17092718
Level 3
The table shows the number of pupils who wear glasses in three Primary 5 classes in a school.
  1. How many pupils in the three classes do not wear glasses?
  2. The total number of pupils who wear glasses is the same as the total number of pupils in Class 5C. How many pupils in Class 5A wear glasses?
3 m
Table Equal stage W Addition & subtraction
87 P5.DE.NK.22122322
Level 2
Seth paid $24 for an equal number of shirts and vests. Each vest cost $4.50. Each shirt cost $3 more than each vest. How many shirts did she buy?
2 m
D 4 operations Money Unit conversion More than or less than Equal stage Number x value Units table
88 P5.RD.JM.17083147
Level 3
Renee had $420 less than Tom. Tom spent 0.6 of his money and Renee spent 0.5 of her money. In the end, Tom and Renee had the same amount of money left. Find the amount of money Renee had at first.
3 m
Decimal to units Money More than or less than Equal stage after Common numerator All change Units table
89 P6.FR.JC.16010116
Level 2
Last week, Fred had a total of 334 yellow and red pens. Two weeks later, he sold 23 of all the yellow pens and 82 red pens. Now he has the same number of yellow and red pens. How many pens does he have in the end?
2 m
Fraction to units Equal stage after All change Units table
90 P5.RD.JM.17083143
Level 3
At a wedding function, the ratio of the number of men to the number of women was 13 : 5. If 35% of the women left, what percentage of the men must leave so that there will be an equal number of men and women remaining?
3 m
D division Ratio to units Percent of a set Equal stage after All change Units table Decimal units
91 P6.FR.JO.21042224
Level 2 PSLE
At first, Lily had an equal number of red and green beads . She gave away 23 of her red beads and some green beads. In the end, she was left with 14 of her beads. What fraction of the green beads was Lily left with?
2 m
Fraction of a set Fraction to units All Change Equal stage before Units table Units manipulation
92 P6.RD.TL.16010125
Level 3
At a fruit stall, there were 399 mangosteens and lemons at first. 34 of the mangosteens and 23 of the lemons were sold. In the end, there were same number of mangosteens and lemons. How many more mangosteens than lemons were sold?
3 m
Fraction to units More than or less than Equal stage after All change Units table Units manipulation
93 P4.DA.NK.23050414
Level 2
The line graph shows survey results of the favourite snacks of some children.
  1. How many children took part in the survey?
  2. Which 2 snacks have the same total number of votes as popcorn and candy? Give your answers in numbers. (Eg 1, 2)
3 m
Line graph Equal stage
94 P6.RD.TL.16010110
Level 3
The ratio of Henry's total points to that of Vincent's in a mock test was 6 : 7. In the next mock test, Henry's points increased by 70%. By what percentage must Vincent's points be increased if their total points were to be the same? Round off the answer to the nearest whole number.
3 m
W Round off Ratio to units Finding percent Percent change by Percent to units Equal stage after All change Units table Units manipulation
95 P4.RD.JM.17110101
Level 3
Mrs. Tay had an equal number of pears and apples at first. She sold half of the apples and bought another 42 pears. In the end, she had thrice as many pears as apples. Find the number of apples she had at first.
4 m
Fraction of a set Times as many Equal stage before All change Units table
96 P5.ST.JC.18121109
Level 3
Adam, Bryan and Chris have some stickers in the ratio of 10 : 3 : 5.
Adam gives Bryan and Chris a total of 40 stickers.
Now they have same number of stickers.
  1. What is the total number of stickers that they have?
  2. What is the number of stickers that Adam gives to Bryan?
  3. What is the number of stickers that Adam gives to Chris?
3 m
Ratio to units Equal stage after Internal transfer Unchanged total Units table
97 P3.DE.JM.17102914
Level 2
A camera was sold at $55.75 in Shop X. Parker wanted to buy the same camera in Shop Y. He had $40.30 and found out that he was short of $5.75. What was the price difference of the camera in two shops?
3 m
D Addition & subtraction Money Equal stage Model Part-whole Model comparison
98 P5.ST.JC.18121117
Level 2
The ratio of the number of blue stickers to red stickers is 5 : 2.
After Adam buys 10 blue stickers and 40 red stickers,
there is an equal number of blue stickers and red stickers.
How many stickers does Adam have now?
3 m
Ratio to units Equal stage after All change Units table Units equations
99 P5.ST.JC.18121118
Level 2
The ratio of the number of blue stickers to red stickers is 5 : 2.
After Adam gives away 10 blue stickers and 40 red stickers,
there is an equal number of blue stickers and red stickers.
How many stickers does Adam have now?
3 m
Ratio to units Equal stage after All change Units table Units equations
100 P5.ST.JC.18121119
Level 2
The ratio of the number of blue stickers to red stickers is 5 : 2.
After Adam gives away 10 blue stickers and buys another 20 red stickers,
there is an equal number of blue stickers and red stickers.
How many stickers does Adam have now?
3 m
Ratio to units Equal stage after All change Units table Units equations

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