Keystones — Bedrock
Five GCSE retrieval questions · 12 August 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 40 + 67
Answer: 40 + 67 = 107 -
2. Algebra Substitution
If x = 10, find the value of 5x + 5
Answer: 55 -
3. Geometry Converting lengths
Convert 7cm to mm
Answer: 70mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:24
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 2, 18, 11, 17
Answer: 12