Keystones — Bedrock
Five GCSE retrieval questions · 28 November 2020 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 22 + 30
Answer: 22 + 30 = 52 -
2. Algebra Substitution
If x = 5, find the value of 2x + 9
Answer: 19 -
3. Geometry Converting lengths
Convert 6m to cm
Answer: 600cm -
4. Ratio Simplifying ratios
Simplify the ratio 4:12
Answer: 1:3 -
5. Statistics Mean
Find the mean of: 12, 14, 8, 20, 17
Answer: 14.2