Questions

From Worst to Best

31 P6.DE.JO.220424

Level 2
The actual lengths of Rope A and Rope B are in 2 decimal places. When rounded to the nearest metre, their lengths are each 10 m long. What is the greatest possible difference between the lengths of Rope A and Rope B?

2 m

Attempt

32 P5.RD.JC.17083019

Level 3
A tank is ²₉ filled with water. Rachel poured in 8.3 litres of water and the tank is now ⁵₆ full. How much water can the tank hold if it is filled to the brim? Give your answer correct to 1 decimal place.

3 m

Attempt

Fraction to units D Place values D Round off Units method

33 P5.DE.JM.17083037

Level 1
When rounded off to the nearest dollar, a box of apples cost $36. What is the highest possible actual price of the apples?

2 m

Attempt

D Place values D Round off Min-max Money

34 P6.AP.TL.17090721

Level 2
A rectangle is placed in a circle with O as the centre. Use the calculator value of π to find the shaded part of the circle. Correct the answer to 1 decimal place.

2 m

Attempt

Rectangle Square & square root Triangle Circle area Fraction of a whole D Place values D Round off

35 P5.DE.JC.17090401

Level 1
When rounded off to the nearest dollar, a box of apples cost $36. What is the lowest possible actual price of the apples?

2 m

Attempt

D Place values D Round off Min-max Money

36 P5.DE.JM.17082989

Level 2
The actual masses of two wooden crates, Y and Z, are measured in hundredths. The mass of Crate Y is rounded off to 13.6 kg and the mass of Crate Z is rounded off to 16.8 kg. What is the greatest possible difference in the actual masses of these two crates? Give the answer in kg.

2 m

Video Attempt

D Place values D Addition & subtraction D Round off Min-max change Mass

37 P5.DE.JC.17083083

Level 1
Express 1 ³₂₀ as a decimal correct to 1 decimal place.

2 m

Attempt

D Place values D Round off Fraction to decimal Mixed numbers

38 P6.AP.NK.21060415

Level 2 PSLE
The figure is formed by joining two quarter circles of radius 3 cm. Find the perimeter of the figure. Round your answer to the nearest whole number. Take π = 3.14

2 m

Attempt

Composite figure perimeter Quarter circle D Round off

39 P4.DE.JM.17101058

Level 1
A number when rounded off to one decimal place is 15.8. What could be the smallest possible actual number with two decimal places?

2 m

Attempt

D Place values D Round off Min-max

40 P5.SP.NK.23050638

Level 3
A rectangular tank measuring 50 cm by 25 cm by 19 cm was ¹₂ filled with water. There was a leak at the bottom of the tank and water seeped out at the rate of 5 m? per second. How many minutes would it take to empty the tank completely? Leave your answer correct to 1 decimal place.

3 m

Attempt