Level 1 PSLE
Three volumes are given.
1.2ℓ, 1 12ℓ, 1ℓ 2 mℓ
  1. Which is the smallest?
  2. Which is the largest?
1 m
Level 2 PSLE
A total of 130 people stand in a queue for movie tickets. There are at least 3 adults between any 2 children. What is the largest possible number of children in the queue?
2 m
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Level 3 PSLE
Letters A, B, C formed a pattern as shown below.
A B A C A A B A C A A B A C A ...

If there are 137 'A', what is the greatest possible number of letters in the pattern?
2 m
Level 1
What is the maximum number of cubes of edge 6 cm that can be cut from a foam cuboid, 67 cm by 36 cm by 27 cm?
2 m
Level 2
Two numbers add up to 1.48. Both of the numbers are less than 1. One of them has 1 decimal place and the other has 2 decimal places. What is the largest possible difference between the two numbers?
2 m