121 P4.AP.JM.17100240
Level 3
The area of a rectangle is 72 cm2. Given that its length is twice its breadth, find its perimeter.
3 m
Rectangle Model Times-as-many Units method
122 P4.WN.JM.17102314
Level 2
Ken has some marbles. He has twice as many marbles as his brother. Given that they have 816 marbles altogether, how many marbles does his brother have?
2 m
Model Times-as-many Units method
123 P4.AN.NK.23041231
Level 3
The figure is made up of a square ABCD and a rectangle DEFG. ∠CDG = 69°. ∠x is twice of ∠y. Find ∠x.
3 m
Right angle Square Rectangle Overlapping angles Model Times-as-many Units method
124 P4.WN.JM.17102315
Level 2
Machine A produces thrice as many buns as Machine B in a day. Together, they produce 9408 buns in a day. How many buns can Machine B produce in a day?
2 m
Model Times-as-many Units method
125 P4.WN.JM.17102316
Level 2
In a school, there are 540 boys. There are thrice as many boys as girls. What is the enrolment of the school?
2 m
Model Times-as-many Units method
126 P4.AN.JM.17092847
Level 3
The figure shows a piece of rectangular paper ABCD folded at two of its corners C and D. ∠DFE is 6° larger than ∠CFG but it is half the size of ∠CFD. Find ∠CFD.
3 m
Rectangle Angles on a straight line Overlapping angles Folded figure Model Comparison Units method
127 P4.AN.JM.17092845
Level 3
The figure shows a piece of rectangular paper ABCD folded at one of its corners A. ∠AEB is 4 times as large as ∠AEF. Find ∠AEB.
3 m
Rectangle Angles on a straight line Overlapping angles Folded figure Model Times-as-many Units method
128 P4.FR.JM.17101640
Level 2
Esther has 24 marbles. Half of them are white, 4 are red and the rest are green. What fraction of the marbles are green?
3 m
Fraction to units Units method
129 P4.FR.JM.17101632
Level 2
Jethro had some books. He gave 211 of the books to his brother and had 36 books left. How many books did Jethro have at first?
3 m
Fraction to units Units method
130 P4.FR.JM.17101636
Level 2
512 of a class are boys. The rest are girls. If there are 21 girls in the class, how many pupils are there altogether in the class?
3 m
Fraction to units Units method
131 P4.FR.JM.17101699
Level 2
The number of guppies was 23 of the number of angelfish in a fish tank. There were 30 fishes altogether. How many guppies were there in the fish tank?
3 m
Fraction to units Units method
132 P4.FR.JM.17101628
Level 2
56 of a number is 90. What is the number?
3 m
Fraction to units Units method
133 P4.FR.JC.17100336
Level 2
The mass of Wei Liang is 32 of Ahmad's mass. Ahmad's mass is 36 kg. John is 14 kg lighter than Wei Liang. What is the mass of John?
3 m
Improper fractions Fraction to units Mass Units method
134 P4.FR.JC.17100353
Level 2
A tank of water has a mass of 5 kg 205 g. The mass of the tank is half that of the water. Find the mass, in grams, of the tank.
3 m
Fraction to units Mass Unit conversion Units method
135 P4.FR.JM.17101625
Level 2
Arjun earned $2350 every month. He saved 15 of his salary in January and spent the rest. How much money did he spend in January?
3 m
Fraction to units Money Units method
136 P4.FR.JM.17103155
Level 2
In the class, 25 of the pupils like rabbits, 13 of the pupils like dogs and the rest like cats.
  1. What fraction of the class like cats?
  2. Given that 6 more pupils like rabbits than cats, find the number of pupils in the class.
3 m
F Addition & subtraction Fraction to units Units method
137 P4.FR.JM.17101629
Level 2
A fish tank can hold 12 ℓ of water. 56 of the bowl is filled with water. How much water is needed to fill the tank completely?
3 m
F Addition & subtraction Fraction to units Volume Units method
138 P4.FR.JM.17101698
Level 3
The number of marbles 5 boys have is shown in the table. Given that Daniel has 13 the number of marbles Benjamin has, how many marbles does Daniel have?
3 m
Fraction to units Units method
139 P4.ME.NK.23050434
Level 2
Cody's gym class usually lasts 1 h 40 min. However, last Saturday, Cody's class lasted 29 min longer than usual. The class started 20 min late. As such, Cody's class ended at 7.52 p.m. instead of the usual time. What time does Cody's gym class usually start? (Leave your answer in 24-hour clock format.)
4 m
am pm Start end time Duration Timeline 24-hour clock More than or less than Equal stage Units method
140 P4.AP.JM.17100206
Level 3
The figure is made up of 2 squares. The length of the smaller square is half the length of the bigger square. Given that the perimeter of the whole figure is 60 cm, find the length of the bigger square.
3 m
Length Square Rectilinear figure Composite figure perimeter Fraction to units Units method

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