Question:

Level 1 PSLE

Arnold walked from his home to the library, which is 1.2 km away, at an average speed of 80 m/min. How many minutes did Arnold take to walk from his home to the library?

1 m
Arnold walked from his home to the library, which is 1.2 km away, at an average speed of 80 m/min. How many minutes did Arnold take to walk from his home to the library?

Level 1

A car left City A at 11.30 p.m. It reached City B 550 km away at 9.30 a.m. the next morning. What was its speed?

1 m
A car left City A at 11.30 p.m. It reached City B 550 km away at 9.30 a.m. the next morning. What was its speed?

Level 1

Find the area of the triangle.

Find the area of the triangle.

1 m

Level 1

The side of an equilateral triangle is 24k cm long. Find its perimeter.

1 m
The side of an equilateral triangle is 24k cm long. Find its perimeter.

Level 1 PSLE

What is the area of triangle ABC as shown in the figure?

What is the area of triangle ABC as shown in the figure?

1 m

Level 1 PSLE

Robert cut out three identical right-angled triangles. He joined them to form the figure PQRS shown. RS = 12 cm and SP = 10 cm. The perimeter of the figure is 36 cm. Find the area of the figure PQRS.

Robert cut out three identical right-angled triangles. He joined them to form the figure PQRS shown. RS = 12 cm and SP = 10 cm. The perimeter of the figure is 36 cm. Find the area of the figure PQRS.

1 m

Level 3

Some patterns of shaded and unshaded small triangles is given. The unshaded triangles are those which have at least one side on the edge of the big triangle. All of the other small triangles are shaded. The table below shows numbers of small triangles.

Some patterns of shaded and unshaded small triangles is given. The unshaded triangles are those which have at least one side on the edge of the big triangle. All of the other small triangles are shaded. The table below shows numbers of small triangles.

- Find the total number of triangles in Pattern 80.
- Find the number of shaded triangles in Pattern 40.
- Find the number of unshaded triangles in Pattern 50.

3 m

Level 3

Study the pattern.

Study the pattern.

- Complete the table.
- How many dots are there on each side of the triangle if the total number of dots on the triangle is 102?

3 m

Level 3

Study the patterns.

Study the patterns.

- Find the total number of triangles in Figure 30.
- Express the biggest triangle as a percentage of the total possible number of triangles in Figure 30. Correct your answer to 2 decimal places.

5 m

Level 3

The figure is made of identical triangles.

The figure is made of identical triangles.

- Complete the table for layers 5 and 10.
- If each small triangle has a height of 4 cm and a perpendicular base of 3 cm. Find the area of all the triangles at the 29th layer.

5 m