Keystones — Bedrock
Five GCSE retrieval questions · 23 June 2017 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 38 + 10
Answer: 38 + 10 = 48 -
2. Algebra Substitution
If x = 10, find the value of 5x + 12
Answer: 62 -
3. Geometry Converting lengths
Convert 45cm to mm
Answer: 450mm -
4. Ratio Simplifying ratios
Simplify the ratio 10:12
Answer: 5:6 -
5. Statistics Mean
Find the mean of: 8, 3, 12, 16, 11
Answer: 10