Keystones — Bedrock
Five GCSE retrieval questions · 3 July 2020 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 85 + 90
Answer: 85 + 90 = 175 -
2. Algebra Substitution
If x = 3, find the value of 7x + 12
Answer: 33 -
3. Geometry Converting lengths
Convert 6m to cm
Answer: 600cm -
4. Ratio Simplifying ratios
Simplify the ratio 20:8
Answer: 5:2 -
5. Statistics Mean
Find the mean of: 15, 10, 19, 5
Answer: 12.25