361 P5.RD.JM.17083131
Level 2
Charles and Lily had the same number of sweets. After Lily gave away 15 sweets and Charles gave away 45 sweets, Lily had 4 times as many sweets as Charles. How many sweets did each of them have at first?
2 m
Ratio to units Times as many Equal stage before All change Units table
362 P4.ST.JC.18120969
Level 2
The mass of a box with 8 marbles is 12.35 kg.
Each marble weighs 1.2 kg.
  1. What is the mass of the empty box?
  2. What is the mass of 3 empty boxes?
3 m
D 4 operations Model Part-whole Units method
363 P4.AP.NK.23050801
Level 1
A rectangle has a breadth of 12 cm. If the length of the rectangle is 3 times its breadth, what is its perimeter?
2 m
Rectangle Times as many Units method
364 P5.RA.JM.17083160
Level 2
Mr Tan gave monthly allowance to his wife and two daughters in the ratio of 5 : 3. His daughters received $420 altogether. How much did his wife receive?
2 m
Ratio to units Money Units method
365 P5.ST.JC.18121202
Level 3
The average cost of some books is $75.
When another 3 books are added,
the total cost increases by $190.
The average cost becomes $70.
How many books are there in the end?
3 m
2 averages Averaging out Average with unknown quantity Number x value Units equations Units table
366 P6.ST.NK.18121469
Level 3
Fill in the blanks in whole numbers or decimals.
2 boys, Adam and Bryan, share some stickers.
Bryan has 20% of the total.
If Bryan gives away some stickers,
his number of stickers decreases by 25%.

  1. Number of stickers that Bryan has at first = _____ u
  2. Change in the number of stickers that Bryan has = _____ u
  3. Number of stickers that Bryan has in the end = _____ u
  4. Number of stickers that Adam has in the end = _____ u
4 m
Percent of a whole Percent change by Percent to units Unchanged quantity Units table Decimal units
367 P6.VO.JC.23034302
Level 2 PSLE
Jenson glued 18 cubes of side 1 cm to form the solid shown.
  1. Jenson painted the whole solid, including the base. What was the total painted area?
  2. Jenson added some cubes of side 1 cm to the solid to form a cuboid 3 cm by 5 cm by 5 cm. How many cubes did he add?
2 m
Volume of cube Volume of cuboid Filling up with cubes Surface area with units cubes
368 P6.RA.TL.16010101
Level 2
The ratio of kiwis to watermelons is 2 : 5. If 304 watermelons were added, the ratio of kiwis to watermelons will be 3 : 17. How many kiwis are there?
2 m
Ratio to units Unchanged quantity Units table
369 P5.PC.JM.17083112
Level 2
Terry bought 10 cans of Coke, 20 cans of Sprite and some Pepsi. Given that 40% of the drinks Terry bought were Pepsi, how many cans of Pepsi did he buy?
2 m
Percent of a set Units method
370 P5.RA.JM.17083161
Level 2
The sides of a triangle are in the ratio 5 : 2 : 3. The length of the longest side is 20 cm. Find the length of the shortest side of the triangle.
2 m
Ratio to units Area Perimeter Units method
371 P5.RD.JM.17083142
Level 2
There were 40 more dresses than blouses in a shop. After 70 dresses and 30% of the blouses were sold, there were an equal number of dresses and blouses left. How many blouses were there in the shop at first?
2 m
Percent to units More than or less than Equal stage after All change Units table Units equations
372 P6.SP.TL.18012206
Level 2
A race car travelled 25 of its journey at an average speed of 64 km/h. Find its average speed for the remaining 480 km if its average speed for the whole journey was 80 km/h.
2 m
DST triangle Average speed Journey by parts Different speed Fraction of a whole Units method
373 P4.ST.JC.18120970
Level 2
The mass of a box with 4 marbles is 3.77 kg.
The mass of the empty box is 2.57 kg.
  1. What is the mass of each marble?
  2. What is the mass of a box with 7 marbles?
3 m
D 4 operations Model Part-whole Units method
374 P5.ST.JC.18121203
Level 3
The average cost of some books is $30.
When a book that costs $90 is added,
the average cost of the books becomes $40.
How many books are there in the end?
3 m
2 averages Averaging out Average with unknown quantity Number x value Units equations Units table
375 P6.ST.JC.18121449
Level 3
Fill in the blanks in whole numbers or decimals.
2 boys, Adam and Bryan, share some stickers.
Bryan has 20% of the total stickers.
If Bryan receives extra stickers,
his number of stickers increases to 30%.

  1. Number of stickers that Bryan has at first = _____ u
  2. Change in the number of stickers that Bryan has = _____ u
  3. Number of stickers that Adam has at first = _____ u
  4. Number of stickers that Adam has in the end = _____ u
4 m
Percent of a whole Percent change to Percent to units Unchanged quantity Units table
376 P6.DA.NK.21060907
Level 2 PSLE
A group of children was asked to choose one burger from chicken, beef, hotdog and mutton. The table represents the children's choices. The children's choices were also represented by a bar graph but the names of the burger were not shown. What was the total number of children who chose chicken and hotdog burgers?
2 m
Bar graph Table Percent of a set Units method
377 P6.ME.NK.21060319
Level 1 PSLE
Karla read 3 books in 2 hours. She took the same amount of time to read the first 2 books. She took 30 minutes longer to read the third book than the first. How many minutes did she take to read the third book?
2 m
Time Duration Unit conversion More than or less than Units method
378 P5.RA.JM.17083137
Level 2
In the circle, the ratio of the area of the shaded part to the area of the unshaded part is 3 : 1. Given that the area of the shaded part is 48 cm2, what is the area of the circle?
2 m
Ratio to units Area Perimeter Units method
379 P4.ST.JC.18120971
Level 1
Adam saves $8.70.
He saves 3 times as much as Bryan.
How much more does Adam save than Bryan?
2 m
D 4 operations More than or less than Model Times-as-many Units method
380 P6.DA.TL.18011913
Level 2 PSLE
The graph shows the mass of a cup when empty and when different combinations of objects A, Band C are placed in the cup.
  1. What is the mass of the empty cup?
  2. What is the average mass of the objects A, Band C?
2 m
Bar graph Average Mass Sets Units & parts & boxes

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