Worked example
27 October 2026
Understanding metric units is an important part of 11+ maths. Children often see questions where they need to convert between grams and kilograms, especially in a multiple choice format.
Multiple choice: Metric unit facts
Which is the same as 3,000 g? A) 3 kg B) 30 kg C) 300 kg D) 3,000 kg
Step 1: Remember that 1 kilogram (kg) = 1,000 grams (g).
Step 2: To change grams to kilograms, divide by 1,000.
Step 3: 3,000 g ÷ 1,000 = 3 kg.
The correct answer is A) 3 kg.
After seeing this example, your child will know how to spot the correct answer when changing grams to kilograms in a multiple choice question. They can now practise similar questions to build confidence with metric unit facts for the 11+ exam. Key insight: Recognising the link between grams and kilograms helps children answer these quickly and accurately.
