Keystones — Bedrock
Five GCSE retrieval questions · 1 May 2022 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 72 + 72
Answer: 72 + 72 = 144 -
2. Algebra Substitution
If x = 5, find the value of 2x + 11
Answer: 21 -
3. Geometry Converting lengths
Convert 31cm to mm
Answer: 310mm -
4. Ratio Simplifying ratios
Simplify the ratio 15:30
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 20, 19, 18, 19, 12
Answer: 17.6