How to explain compare and convert metric units of mass in mass to your student. Example question
31 October 2026
Understanding how to compare and convert metric units of mass is a key skill for 11+ maths. Children often need to switch between kilograms and grams in questions, so it helps to see a clear example.
Here is a simple step-by-step question to show how the conversion works.
Example question
Convert 2 kilograms (kg) to grams (g).
Step 1: Know the conversion
1 kilogram = 1000 grams.
Step 2: Multiply to convert
2 kg × 1000 = 2000 g.
Answer:
2 kilograms is equal to 2000 grams.
After seeing this example, your child will recognise how to convert between kilograms and grams using multiplication. This builds confidence for similar questions in 11+ practice.
Key insight: Once your child understands the basic conversion, they can tackle a range of mass questions with ease.
