Level 3 PSLE
Table 1 consists of numbers from 1 to 72. Kenny and Lionel are given a plastic frame that covers exactly 9 squares of Table 1 with the centre square covered.
  1. Kenny puts the frame on the 9 squares shown in Figure 1. What is the average of the 8 numbers that can be seen in the frame?
  2. Lionel puts the frame on some other 9 squares. The sum of the 8 numbers that can be seen in the frame is 320. What is the smallest number that can be seen in the frame?
3 m
Level 2
Using the digits, arrange and form the largest 5-digit even number.
7, 9, 0, 6, 2.
2 m
Level 3
The table shows the time taken by 4 participants in a race. All the times recorded are in whole numbers. Some of the time recorded were blocked by an ink drop. The average time taken by the 4 participants was 60 seconds. The difference between the time taken by Gabriel and Owen was 2 seconds. Find the shortest possible time taken by Fred.
3 m
Level 2
What is the difference between the smallest 4-digit odd number and the greatest 3-digit even number?
2 m
Level 2
A number when rounded off to the nearest ten gives a value of 24350.
  1. What is the smallest possible number?
  2. What is the largest possible number?
2 m
Level 3
The table shows the types of cards collected by 4 boys.
  1. Carl and Fred collected the same number of cards. How many foreign cards did Fred collect?
  2. Who collected the most number of cards?
4 m
Level 2
The number of chairs in the hall is 1500 when rounded off to the nearest hundred.
  1. What is the greatest possible number of chairs in the hall?
  2. What is the smallest possible number of chairs in the hall?
2 m
Level 1
Write the greatest whole number in each blank to make each number statement true.
  1. 7 + ___ is less than 35.
  2. ___ - 9 is less than 40.
2 m
Level 2
If ___ x 9 is less than 2602, the greatest number in the blank that will make the mathematical statement true is ___.
2 m
Level 2
What is the difference between the smallest factor and the biggest factor of 20?
2 m