1 P5.RA.JM.17083135
Level 1
The ratio of Natalie's age to her brother's age is 7 : 9. Natalie is 21 years old. What is her brother's age?
1 m
Ratio to units Units method
2 P6.ST.JC.18121383
Level 2
Fill in the blanks.
Adam and Bryan have stickers in the ratio of 5 : 3.

  1. Number of stickers that Adam has = _____ u
  2. Number of stickers that Bryan has = _____ u
  3. Total number of stickers = _____ u
  4. Difference in the number of stickers between Adam and Bryan = _____ u
4 m
Ratio to units
3 P6.RD.JO.21042225
Level 1 PSLE
Yao drew three circles to form a figure. The areas of the circles were in the ratio 1 : 5 : 30. She then shaded some parts of the figure as shown. What fraction of the figure was shaded?
2 m
Fraction of a whole F Simplest form Ratio to units
4 P6.ST.JC.18121425
Level 3
Fill in the blanks.
The ratio of adults to children is 1 : 2.
The ratio of boys to girls is 3 : 5.
Use LCM and find the following.

  1. Number of adults = _____ u
  2. Number of boys = _____ u
  3. Difference in the number of boys and girls = _____ u
  4. Total number of people = _____ u
4 m
Ratio to units Combined repeated identity Units table
5 P6.ST.JC.18121426
Level 3
Fill in the blanks in whole numbers or fractions only.
The ratio of adults to children is 1 : 2.
The ratio of boys to girls is 3 : 5.
The number of women to men is 2 : 3.
Let the number of children be 2 u.

  1. Number of adults = _____ u
  2. Number of boys = _____ u
  3. Number of women = _____ u
  4. Total number of people = _____ u
4 m
Ratio to units F Multiplication Combined repeated identity Branching Fraction units
6 P5.RD.JM.17083132
Level 2
A bag contains blue and green marbles in the ratio of 2 : 5. There is a total of 91 marbles in the bag. How many more blue marbles must be added into the bag so that the number of blue marbles will be the same as the number of green marbles?
2 m
Ratio to units More than or less than Equal stage after Units table Unchanged quantity
7 P6.RA.JC.16010101
Level 2
The ratio of Henry's age to Mark's age is 9 : 5. Last year, their average age was 20. How old will Mark be in 5 years' time?
2 m
Ratio to units Average Units table
8 P5.ME.JC.17083105
Level 2
The figure shows the mass of 3 objects, A, B and C. C has a mass of 2.3 kg. The ratio of the mass of A to the mass of B is 4 : 1. What is the mass of B? Express your answer in kg.
2 m
Scale reading Mass D 4 operations Ratio to units Intervals Units method
9 P6.RD.JC.16010137
Level 2 PSLE
The ratio of the number of banana tarts to strawberry tarts is 3 : 5. The ratio of the number of kaya tarts to the total number of banana tarts and strawberry tarts is 5 : 1. What fraction of the tarts are strawberry tarts?
2 m
Fraction of a set Ratio to units Combined repeated identity Units manipulation Units table
10 P6.RD.JC.17050707
Level 2
At a zoo, 14 of the visitors were men. The remaining visitors were women and children in the ratio of 1 : 3. If there were 150 more children than men. How many visitors were there at the zoo?
2 m
Fraction to units Ratio to units More than or less than Combined repeated identity Remainder concept Units table
11 P6.AG.JC.17080416
Level 2
Box X is half as heavy as Box Y. Box Z is 3 times as heavy as Boxes X and Y together. What is the mass of Box Z if Box Y is n kg?
2 m
Algebra in 1 variable Ratio to units Mass Times as many Units method
12 P5.RD.JC.17083018
Level 2
The figure consists of 2 squares A and B whose areas are in the ratio of 3 : 1. Given that 112 of Square A is shaded, what fraction of Square B is shaded?
2 m
Fraction of a whole Fraction to units Ratio to units Area perimeter Square Overlapping area Repeated identity Remainder concept Units table
13 P6.RA.TL.16010135
Level 2
The ratio of Liam's to Mark's money is 7 : 9. The ratio of Mark's to Ian's money is 8 : 1. If Liam has $112, how much less does Ian have than Mark?
2 m
Ratio to units Money Repeated identity Units table
14 P5.RA.JM.17083117
Level 2
Manny designed a logo using three ovals. The areas of the ovals were in the ratio of 1 : 4 : 13. He then shaded some parts of the logo as shown. What was the ratio of the shaded area to the unshaded area of the logo?
2 m
Finding ratio Ratio to units Overlapping area Units method
15 P6.VO.NK.17080906
Level 2
The length, breadth and height of a cuboid are in the ratio 8 : 5 : 2. If the length of the cuboid is 30 cm longer than its height, find its volume.
2 m
Volume of cuboid Ratio to units More than or less than Units method
16 P5.RD.NK.23021706
Level 2
In a scout camp, each scout was given either 2 or 4 wafers for supper. The ratio of the number of scouts to the number of wafers was 3 : 10. What fraction of the scouts received 2 wafers each?
2 m
Fraction of a set Ratio to units Number x value
17 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
18 P6.RA.JC.17072201
Level 2 PSLE
The pupils in a class are divided equally into Team A and Team B. The ratio of the number of boys to the number of girls in Team A is 2 : 1 and in Team B, it is 4: 11. What is the ratio of the number of boys to the number of girls in a class?
2 m
Finding ratio Ratio to units Equal stage Combined repeated identity Units table Units manipulation
19 P5.VO.NK.23012636
Level 2
The ratio of the length to the breadth to the height of a cuboid is 7 : 5 : 8. The height is 18 cm longer than the breadth. Find the volume of the cuboid.
2 m
Volume of cuboid Ratio to units Units method
20 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 per page

10 per page

20 per page

Symbols

x2
x3
₵
$
⊥
//
∠
°
π
%
:
\[ \]
STUDENT
Navigations
Contact Us
Members
Links