181 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
182 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
183 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
184 P4.DE.JM.171010123
Level 3
Nick spent 25 of his money on a watch which cost $90. If he had bought a book instead, he would have only spent 0.25 of his money. How much did the book cost?
3 m
D Multiplication Fraction of a whole Fraction to units Money Decimal units
185 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
186 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
187 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
188 P4.FR.JM.17101628
Level 2
56 of a number is 90. What is the number?
3 m
Fraction to units Units method
189 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
190 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
191 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
192 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
193 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
194 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
195 P4.DE.JM.171010128
Level 3
The number of 20-cent coins in a box is as many as the number of $1-dollar coins. The total value of the coins is $26.40.
  1. Find the total number of coins in the box.
  2. Find the total value of 20-cent coins in the box.
3 m
Money Number x value Decimal units
196 P4.DE.JC.17100405
Level 3
A tank contained 3.7 ℓ more water than a pail. After some water was poured from the tank to the pail, both the tank and the pail had 6 ℓ of water each. How much water was there in the pail at first?
3 m
D 4 operations Volume Equal stage after Internal transfer Model Comparison Units table
197 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
198 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
199 P4.ME.NK.23050431
Level 2
Sarah read 4 books in 3 h 18 min. She took the same amount of time to read each of the first 3 books. She took 54 min longer to read the fourth book than each of the first 3 books. She finished reading all the books at 19 28. What time did she start reading the fourth book?
4 m
Start end time Duration Timeline 24-hour clock More than or less than Equal stage Units method
200 P4.AP.JM.17100178
Level 3
The figure is made up of rectangle RSTU and squares PQYX and WYUV. The length of PQ is equal to the length of RS. The length of PX is twice the length of UV. Find the length of QR.
3 m
Length Square Rectangle Rectilinear figure Composite figure perimeter Equal stage Model Times-as-many Units method

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