Keystones — Bedrock
Five GCSE retrieval questions · 5 September 2021 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 39 + 38
Answer: 39 + 38 = 77 -
2. Algebra Substitution
If x = 4, find the value of 2x + 4
Answer: 12 -
3. Geometry Converting lengths
Convert 20m to cm
Answer: 2000cm -
4. Ratio Simplifying ratios
Simplify the ratio 10:20
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 6, 15, 12, 18
Answer: 12.75