Level 1
Find the following values without a calculator.

Which is larger?
  1. 2.3 cm or 0.23 m?
  2. 1.3 ℓ or 130 mℓ?
  3. 12 km or 1200 m?
3 m
Level 2
In the figure, ABCE and ACDF are rectangles and DEF is a straight line. AB = 4 cm. BC = 3 cm and AC = 5 cm. Find the length of AF.
2 m
Level 1
The area of a square is 81 cm2. Find the perimeter of the figure.
2 m
Level 2
Ribbon A is 75 cm long. Ribbon B is 3 times as long as Ribbon A. What is the average length of the 2 pieces of ribbon?
2 m
Level 2
A lorry consumes 0.08 litre of petrol for each kilometre travelled. How many Iitres of petrol are needed for the lorry to travel 40 kilometres?
2 m