Keystones — Bedrock
Five GCSE retrieval questions · 25 October 2020 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 91 + 62
Answer: 91 + 62 = 153 -
2. Algebra Substitution
If x = 10, find the value of 2x + 11
Answer: 31 -
3. Geometry Converting lengths
Convert 10m to cm
Answer: 1000cm -
4. Ratio Simplifying ratios
Simplify the ratio 15:25
Answer: 3:5 -
5. Statistics Mean
Find the mean of: 13, 2, 19, 12, 2
Answer: 9.6