Level 3
Find the sum of all the odd numbers from 40 to 242.
3 m
Level 3
The figure shows a series of steps built using square cubes. The n number of steps is given by x -step.
  1. How many square cubes were used if n is 5?
  2. How many square cubes were used if n is 40?
  3. Find the number of steps if a total of 144 square cubes are used.
3 m
Level 3
The diagram shows a sequence of patterns formed by square tiles. By considering the pattern information in the table, answer the questions.
  1. Find the number of tiles at the bottom layer in the 29th pattern
  2. Find the total number of tiles in Pattern 50.
3 m
Level 3
Find the sum of all the even numbers from 40 to 242.
3 m
Level 3
Benny formed the following patterns using toothpicks.

If the last pattern formed by Benny had 360 matchsticks, what was the pattern number?
3 m
Level 3
If the pattern of letters continues, what is the 100th letter?
4 m
Level 3
Study the table carefully. In which column (C) and row (R) will the number 353 appear in?
4 m
Level 3
Dennis saved some money on the first week. Each following week, he managed to save $8 more than the week before. He saved a total of $100 after 4 weeks. How much money did he save on the 3rd week?
4 m
Level 3
Some squares are used to make the following pattern. How many squares are there in Pattern 7?
4 m
Level 3
Study the pattern. How many triangles are there in Pattern 9.
4 m