Level 1
The diagram shows the seating arrangement in an auditorium. The rest of the seats follow the same pattern. How many seats are there in Row 11?
1 m
Level 1 PSLE
Ben used 48 tacks to pin his flashcards side by side onto a board as shown.
How many flashcards did he pin altogether?
2 m
Level 2
The figure shows a pattern formed using some sticks.

  1. How many sticks are needed to form 10 triangles?
  2. How many triangles are formed using 101 sticks?
2 m
Level 2
The sequence of patterns is formed with squares. The first three patterns are shown.
  1. How many squares are needed in pattern 43?
  2. Which pattern number contains 514 squares?
2 m
Level 3
Based on the given number sums:
  1. If Row 2, (that is, 4 + 5 + 6 = 7 + 8) is said to have 5 numbers, and Row 3 has 7 numbers, how many numbers does Row 40 have?
  2. Which row has 155 numbers?
3 m