Question:

Level 1 PSLE

Measure the length AB and give your answer to the nearest cm.

Measure the length AB and give your answer to the nearest cm.

1 m

Level 1

Find the following values without a calculator. Round off 98765 to

1 m
Find the following values without a calculator. Round off 98765 to

- the nearest ten.
- the nearest hundred.
- the nearest thousand.
- the nearest ten thousand.

Level 2

The figure is made up of 3 rectangles and 3 semi-circles. Find the perimeter of the figure. (Take π =^{22}_{7}) Round off the answer to the nearest whole number.

The figure is made up of 3 rectangles and 3 semi-circles. Find the perimeter of the figure. (Take π =

2 m

Level 2

The figure is formed by 2 semicircles, 2 identical quarter circles and a square ABCD. The perimeter of square ABCD is 60 cm. What is the total area of the shaded parts? Express the answer in the nearest whole number. (Take π = 3.14)

The figure is formed by 2 semicircles, 2 identical quarter circles and a square ABCD. The perimeter of square ABCD is 60 cm. What is the total area of the shaded parts? Express the answer in the nearest whole number. (Take π = 3.14)

2 m

Level 3

The figure shows a tank made up of 3 sections. Cuboid A with a square base of side 4 cm and height 30 cm. Cube B with a side of 12 cm. Cuboid C that is 60 cm by 20 cm by 40 cm. Water from a tap above flows down at a rate of 1.2 litres per minute while water is drained out from the bottom at a rate of 1 litre per minute. How long did it take to fill up the tank to a height of 66 cm from the base? Give the answer in minutes correct to nearest whole number.

The figure shows a tank made up of 3 sections. Cuboid A with a square base of side 4 cm and height 30 cm. Cube B with a side of 12 cm. Cuboid C that is 60 cm by 20 cm by 40 cm. Water from a tap above flows down at a rate of 1.2 litres per minute while water is drained out from the bottom at a rate of 1 litre per minute. How long did it take to fill up the tank to a height of 66 cm from the base? Give the answer in minutes correct to nearest whole number.

3 m

Level 3

The ratio of Henry's total points to that of Vincent's in a mock test was 6 : 7. In the next mock test, Henry's points increased by 70%. By what percentage must Vincent's points be increased if their total points were to be the same? Round off the answer(s) to the nearest whole number.

3 m
The ratio of Henry's total points to that of Vincent's in a mock test was 6 : 7. In the next mock test, Henry's points increased by 70%. By what percentage must Vincent's points be increased if their total points were to be the same? Round off the answer(s) to the nearest whole number.

Level 3

A tank, 110 cm by 100 cm by 70 cm, was completely filled with water. It was used to fill 16 bottles, each 3 litres in capacity. What was the height of the water left in the tank after all the bottles were filled. Round off to whole number.

3 m
A tank, 110 cm by 100 cm by 70 cm, was completely filled with water. It was used to fill 16 bottles, each 3 litres in capacity. What was the height of the water left in the tank after all the bottles were filled. Round off to whole number.

Level 1 PSLE

Round off 25 571 to the nearest hundred.

1 m
Round off 25 571 to the nearest hundred.

Level 1 PSLE

Round off 986 593 to the nearest ten thousand.

1 m
Round off 986 593 to the nearest ten thousand.

Level 1 PSLE

There were 282 075 tourists at a theme park in 2014. Express this number to the nearest thousand.

1 m
There were 282 075 tourists at a theme park in 2014. Express this number to the nearest thousand.

Level 3

A garden path is to be cemented at $14 per m?. The inner circle has a radius of 60 m and the track is 30 m wide. What is the cost of cementing the track? Round off the answer to the nearest $1000. (Take π = 3.14)

A garden path is to be cemented at $14 per m?. The inner circle has a radius of 60 m and the track is 30 m wide. What is the cost of cementing the track? Round off the answer to the nearest $1000. (Take π = 3.14)

3 m

Level 3

The figure consists of a rectangle, a quadrant and an isosceles triangle. Given that the radius of the quadrant is 10 cm and B is the midpoint of Line AC, find the difference between the shaded areas Y and Z. Express the answer in nearest whole number. (Take π = 3.14)

The figure consists of a rectangle, a quadrant and an isosceles triangle. Given that the radius of the quadrant is 10 cm and B is the midpoint of Line AC, find the difference between the shaded areas Y and Z. Express the answer in nearest whole number. (Take π = 3.14)

3 m

Level 3

After 20 minutes into a race, Daniel has run^{5}_{8} of the route while Piolo has covered only ^{3}_{8} of the distance. Daniel runs at the same average speed throughout the race and Piolo's average speed is 60 m/min slower than Daniel's. If Piolo wants to finish the race at the same time as Daniel, by how many percent should he increase his average speed by for the remaining part of the race? Round off the answer to the nearest whole number.

4 m
After 20 minutes into a race, Daniel has run

Level 1

What is the smallest number possible when rounded off to the nearest 100 is 530000?

1 m
What is the smallest number possible when rounded off to the nearest 100 is 530000?