Keystones — Bedrock
Five GCSE retrieval questions · 24 October 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 40 + 10
Answer: 40 + 10 = 50 -
2. Algebra Substitution
If x = 6, find the value of 3x + 9
Answer: 27 -
3. Geometry Converting lengths
Convert 5m to cm
Answer: 500cm -
4. Ratio Simplifying ratios
Simplify the ratio 18:24
Answer: 3:4 -
5. Statistics Mean
Find the mean of: 22, 15, 5, 10
Answer: 13