Keystones — Bedrock
Five GCSE retrieval questions · 20 January 2023 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 81 + 61
Answer: 81 + 61 = 142 -
2. Algebra Substitution
If x = 6, find the value of 4x + 9
Answer: 33 -
3. Geometry Converting lengths
Convert 3m to cm
Answer: 300cm -
4. Ratio Simplifying ratios
Simplify the ratio 21:24
Answer: 7:8 -
5. Statistics Mean
Find the mean of: 2, 5, 5, 19
Answer: 7.75