481 P5.ST.JC.18121158
Level 3
Adam has some blue stickers and red stickers.
The number of blue stickers is decreased by 20% to 160.
The number of red stickers is decreased by 30% to 70.
  1. How many stickers are there at first?
  2. How many stickers are there in the end?
3 m
Percent of a set Percent change by Percent of different bases All change Units method
482 P5.VO.NK.23022702
Level 3
Tank A was 15 filled with water. After 15000 cm3 of water was added to Tank A, it became 710 full.
  1. Find the volume of Tank A in litres.
  2. Find the volume of water in Tank A in the end. Give your answer in litres.
3 m
Filling tank Fraction of a whole F Addition & subtraction Unit conversion Units method
483 P5.ST.JC.18121159
Level 3
Adam has some blue stickers and red stickers.
The number of blue stickers is increased by 20% to 60.
The number of red stickers is decreased by 30% to 70.
  1. How many stickers are there at first?
  2. How many stickers are there in the end?
3 m
Percent of a set Percent change by Percent of different bases All change Units method
484 P5.WN.JC.17083165
Level 2
6 similar tables with a length of 50 cm each, are placed from one end to the other end of a corridor at an equal distance apart, as shown in the figure. The total length of the walkway is 900 cm. What is the spacing between each table?
2 m
Length Intervals Units method
485 P5.ST.JC.18121160
Level 3
If Adam's income is increased by 50% and
Bryan's amount is decreased by 30%,
both will get $2100 each.
  1. How much is Adam's income?
  2. How much is Bryan's income?
  3. What is the difference between Adam's income and Bryan's income?
3 m
Percent of a set Percent change by Percent of different bases Equal stage after All change Units method
486 P4.DA.JM.17092725
Level 3
The line graph shows the number of newspapers sold at a store over a week.
  1. On which day was the store closed? Give the answer in short form. (Eg Mon)
  2. How many more newspapers were sold on Monday than on Friday?
  3. On which two days were 4400 newspapers sold altogether? Give the answer in short form. (Eg Mon, Tue)
  4. If 9100 newspapers were sold from Monday to Sunday in the week, how many newspapers were sold on Sunday?
4 m
Line graph Time More than or less than Units method
487 P4.AP.JM.17100193
Level 3
The figure is made up of Squares A and B and Rectangle C. Find the length of Square A.
3 m
Length Square Rectangle Units method
488 P4.DE.JC.17100399
Level 2
Three bottles, S, T and U, contain a total of 13.5 ℓ of water. Bottle S contains 1.3 ℓ of water more than Bottle T. Bottle T contains 4.3 ℓ of water more than Bottle U. What is the volume of water in Bottle T?
3 m
D Addition & subtraction Volume Model Comparison Units method
489 P6.SP.TL.18012220
Level 3 PSLE
Blake and Steve ran in a race. When Steve had completed the race, Blake had only run 58 of the distance. Steve's speed was 75 m/min faster than Blake's speed. Both of them did not change their speeds throughout the race. What was Blake's speed in m/min?
3 m
Different speed Direct ratio Fraction to units More than or less than Units method
490 P5.ST.JC.18121161
Level 3
Adam spends $300 of his income and saves the rest.
When he increases his spending by 10%, his savings decreased by 30%
  1. How much is Adam's savings at first?
  2. How much is Adam's savings in the end?
  3. How much is Adam's income?
3 m
Percent change by Percent of different bases Units method
491 P5.ST.JC.19021401
Level 3
If Adam's income increases 10% from $300 and then increases by another 10%, what is Adam's latest income?
3 m
Percent change by Percent of different bases Units method
492 P4.DA.JM.17092732
Level 3
The line graph shows the number of boys and girls in each sports school.
  1. How many pupils were there in Sports School B?
  2. How many more girls than boys were there in Sports School C?
  3. At the end of the year, an equal number of boys and girls from Sports School D were transferred to Sports School A. The fraction of the number of boys to girls in Sports School A becomes 23. Find the total number of boys and girls that were transferred from Sports School D to Sports School A.
4 m
Line graph Fraction of a set Fraction to units Internal transfer More than or less than Equal stage Units method
493 P4.AP.JM.17100172
Level 3
The perimeter of a rectangle is 48 cm. Its length is 3 times as long as its breadth. Find its area.
3 m
Rectangle Model Times-as-many Units method
494 P5.ST.JC.19021402
Level 3
If Adam's income decreases 10% from $330 and then decreases by another 10%, what is the new income?
3 m
Percent change by Percent of different bases Units method
495 P6.SP.TL.18012265
Level 3
Joe took 12 min to cycle from his home to a park for his morning exercise. After the exercise, he took 60 min to walk the same route home. The difference between his cycling and walking speed was 40 km/h. How far was Joe's home from the park?
3 m
DST triangle Different speed Distance apart Inverse ratio Unit conversion Units method
496 P4.AN.JM.17092839
Level 3
In the figure, EC is a straight line. ∠BDC = 42°, ∠ADE is 18° larger than ∠ADB. Find ∠ADE.
3 m
Angles on a straight line Model Comparison Units method
497 P4.DA.JM.17092731
Level 3
The line graph shows the total number of cars sold by a car dealer in the first six months of the year.
  1. In which two months were there a consecutive increase in the number of cars sold?  Give the answer in short form. (Eg Jan, Feb)
  2. What fraction of the cars was sold in the month of the lowest sale? 
  3. The car dealer was paid a fixed amount of money for every car he sold. He received $3200 more in April than in February. How much money did he receive from selling a car?
4 m
Line graph Money Time More than or less than Fraction of a set Fraction to units Number x value Units method
498 P4.AP.JM.17100171
Level 3
Adam ran around a rectangular field from W to X to Y to Z and back to W. He covered a distance of 300 m. If the length of the field is twice the breadth, what is the area of the field?
3 m
Rectangle Model Times-as-many Units method
499 P6.SP.TL.18012257
Level 3
King took 6 hours to drive from Point A to Point B while Jack took 4 hours to drive from Point B to Point A. When they met each other, they were 48 km away from the midpoint of Point A and Point B. What was King's speed?
3 m
Average speed Different starting point Meeting point Inverse ratio Duration Units method
500 P5.ST.JC.18121162
Level 3
If Adam's income increases 10% from $300 and then decreases by another 10%, what is Adam's latest income?
3 m
Percent change by Percent of different bases Units method

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