501 P4.AN.JM.17092840
Level 3
In the figure, EC is a straight line. ∠ADB is twice as large as ∠BDC but 20° less than ∠ADE. Find ∠ADE.
3 m
Angles on a straight line Model Comparison Model Times-as-many Units method
502 P4.AP.JM.17100174
Level 3
The rectangle, not drawn to scale, has a perimeter of 72 cm. Its length is 3 times as long as the breadth. Find the length of the rectangle.
3 m
Rectangle Model Times-as-many Units method
503 P5.ST.JC.18121163
Level 3
If Adam's income decreases 10% from $330 and then increases by another 10%, what is Adam's latest income?
3 m
Percent change by Percent of different bases Units method
504 P4.AP.JM.17100198
Level 3
Brandon walked across a rectangular field from V to W to X to Y to Z and covered a distance of 560 m. The length of the field is thrice the breadth. If it cost $5 to cover 1 m2 of the field with grass, how much did it cost to cover the whole field with grass?
3 m
Rectangle Money Model Times-as-many Units method
505 P4.DE.JM.17101090
Level 2
A string 5.8 m long is used to make 4 similar ribbons. Find the total length needed to make 6 such ribbons.
3 m
D Multiplication D Division Length Units method
506 P4.AP.JM.17100175
Level 3
A square of side 6 cm has the same perimeter as a rectangle. Find the area of the rectangle if the length of the rectangle is twice the breadth of the rectangle.
3 m
Square Rectangle Equal stage Model Times-as-many Units method
507 P4.DE.JC.17100401
Level 3
Tank A holds 3 ℓ 485 mℓ of water. Tank B holds twice as much water as Tank A. Find the total amount of water in the 2 tanks. (Give the answer in litres and millilitres.)
3 m
D Multiplication Volume Unit conversion Model Times-as-many Units method
508 P5.ST.JC.18121144
Level 3
Adam has 200 red stickers, blue stickers and green stickers.
40% of the stickers are blue.
30% of the remaining stickers are red.
The rest are green stickers.
  1. How many green stickers are there?
  2. How many less red stickers than blue stickers?
3 m
Percent of a set Percent to units More than or less than Remainder concept Branching Units method
509 P2.FR.JM.17121934
Level 3
13 of the container is filled by 7 bottles of apple juice.
  1. What fraction of the container is not filled?
  2. How many more similar bottles of apple juice are needed to fill the container completely?
4 m
Fraction of a whole Volume of cuboid Units method
510 P4.AN.JM.17092854
Level 3
The figure shows 2 squares ABCD and BECF. ∠GCF is twice as large as ∠GCB.
  1. Name the line that is parallel to AC.
  2. Find ∠FGC.
3 m
Square Angles sum of triangle Model Times-as-many Units method
511 P4.AP.JM.17100173
Level 3
The breadth of a rectangle is 23 as long as its length. Given that the perimeter is 80 cm, find its area.
3 m
Rectangle Fraction to units Units method
512 P4.AP.JM.17100177
Level 2
The area of a rectangle is 54 cm2. Given that its breadth is 23 of its length, find its perimeter.
3 m
Rectangle Fraction to units Units method
513 P4.AN.JM.17092860
Level 3
In the figure not drawn to scale, ∠AEB = 90° and ∠AEF = 122°. Given that ∠AED is three times as large as ∠DEF, find ∠AED.
3 m
Angles at a point Model Times-as-many Units method
514 P5.DA.JM.17083191
Level 3
A list of 13 numbers has an average of 330. When two numbers are deleted from the list, the average of the remaining numbers is 313.
  1. What is the sum of 13 numbers?
  2. What is the bigger number between the two numbers that have been deleted given that the difference between the two numbers is 1?
3 m
Averaging out 2 Averages More than or less than Units method
515 P6.PC.JC.23100214
Level 2 PSLE
Carl had a collection of rulers, pens and markers. He had 85 rulers. 30% of his collection was pens. He had 51 fewer pens than markers.
  1. How many pens did Carl have?
  2. Carl gave away some pens. His total collection decreased by 20%. What percentage of his collection was pens after that?
4 m
Percent of a set Percent change by More than or less than Units method
516 P4.AN.JM.17092859
Level 3
In the figure, AE is perpendicular to BE and ∠CED = 102°. Given that ∠AED is three times as large as ∠BEC, find ∠AED.
3 m
Angles at a point Model Times-as-many Units method
517 P5.DE.NK.22122003
Level 2
A blouse costs $4.50 more than a shirt. A skirt costs $15.20 more than the blouse. Jelly bought 5 of each item. She paid $376 for them. How much did she pay for the skirts she bought?
3 m
D 4 operations Sets Money More than or less than Times as many Model Units method
518 P4.AP.JM.17100194
Level 3
Brandon walked around a rectangular field from W to X to Y and to Z. He covered a distance of 560 m. The length of the field is thrice the breadth. If it cost $5 to put up a fence of 1 m, how much would it cost to fence around the whole field?
3 m
Rectangle Money Model Times-as-many Units method
519 P4.DE.JC.17100389
Level 3
The mass of one papaya and 7 oranges is 5.8 kg. The papaya is 2.68 kg heavier than each orange. Find the mass of one orange.
3 m
D 4 operations Mass Model Comparison Model Stacking Units method
520 P6.AP.TL.17090768
Level 3
The perimeter of the figure formed by 3 squares, A, B and C, is 54 cm. The length of Square C is 12 the length of Square B. The length of Square A is twice the length of Square B. Find the area of Square A.
3 m
Length Square Fraction to units Times as many Units method

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