281 P6.VO.NK.17053023
Level 3
The figure shows a wooden cuboid that measures 125 cm by 20 cm by 20 cm.
  1. Find the maximum number of 3-cm cubes that can be cut from the wooden cuboid.
  2. Find the total surface area of the L-shaped block after cutting.
5 m
Volume of cuboid Volume of cube Partly painted surface area W Remainder Min-max
282 P4.WN.JM.17102337
Level 3
There is a 4-digit number. The digit in the hundreds place is thrice the digit in the ones place. The digit in the thousands place is the smallest even number. The sum of all the digits is 21. What is the number?
3 m
W Place values Odd & even W Addition & subtraction Min-max Model Times-as-many Units method
283 P4.WN.JM.17102247
Level 2
Place the digits 9, 3, 2, 7 into the boxes on the right to give the largest product.
3 m
W Multiplication & division Min-max
284 P4.WN.JM.17102153
Level 1
What is the largest 5 digit number that has 5 as one of its factors and is less than 100000?
3 m
Factors Min-max More than or less than
285 P6.DA.TL.18011920
Level 3
The average points accumulated by 6 children is 91.5. They have all attained different points which are whole numbers. The lowest point is 70 while the highest point is 100.
  1. Find the average points achieved by the 4 children whose marks lie between the highest and the lowest.
  2. Find the smallest possible second lowest mark among these 6 children.
  3. Find the largest possible second lowest mark among these 6 children.
5 m
Average with min-max More than or less than Units method
286 P5.WN.JM.17082979
Level 3
Mr Tan wants to put all 27 boys and 72 girls into groups for an activity. There are more girls than boys in each group. Each group must have the same number of boys. Each group must also have the same number of girls.
  1. What is the greatest number of groups Mr Tan can form with these conditions?
  2. How many children are in each group?
4 m
W Multiplication & division HCF Min-max More than or less than
287 P1.WN.JC.18100738
Level 1
Which is the smallest number?
9, 20, 18, 10
2 m
Min-max
288 P5.VO.JM.17083194
Level 3
Becky filled a rectangular container which had a base area of 40 cm2 and a height of 25.2 cm with water. Then, she placed 8 identical metal cubes into this container. As a result, the height of the water in the rectangular container increased by 1.6 cm.
  1. What was the length of each side of the metal cube?
  2. After Becky removed the metal cubes from the container, she poured all the water from the container to fill bottles of 0.35 ℓ. What was the maximum number of bottles she could fill?
5 m
Volume of cube Base area x height Cube & cube root Filling tank Displacement Min-max
289 P1.WN.JC.18100739
Level 1
Which is the greatest number?
16, 10, 13, 9
2 m
Min-max
290 P6.AP.NK.21060427
Level 3 PSLE
The figure shows a right-angled triangle.
  1. Find the area of the triangle.
  2. Bruce wants to cut such triangles from a rectangular piece of cardboard 50 cm by 80 cm. At most, how many of such triangles can he cut?
4 m
Rectangle Right-angled triangle Tiling Min-max

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