Level 1
Tom is 72 kg. Alice's mass is 79 of Tom's mass. What is their average mass?
2 m
Level 2 PSLE
Mrs Lee bought 2 litres of oil and used up 34 of it. How much of the oil is left? Express the answer in mℓ .
2 m
Level 2
7 125 ℓ -            mℓ = 2 ℓ 725 mℓ
2 m
Level 2
3 14 ℓ - 528 mℓ =            mℓ
2 m
Level 1
Find the following values without a calculator.
  1. Express 100 mℓ as a percentage of 2 ℓ.
  2. Express 2000 mℓ as a percentage of 1 ℓ.
  3. Express 30 min as a percentage of 2 hours.
  4. Express 2 min as a percentage of 30 seconds.
2 m