Keystones — Bedrock
Five GCSE retrieval questions · 14 December 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 45 + 18
Answer: 45 + 18 = 63 -
2. Algebra Substitution
If x = 2, find the value of 8x + 8
Answer: 24 -
3. Geometry Converting lengths
Convert 3m to cm
Answer: 300cm -
4. Ratio Simplifying ratios
Simplify the ratio 30:25
Answer: 6:5 -
5. Statistics Mean
Find the mean of: 25, 5, 6
Answer: 12