Keystones — Bedrock
Five GCSE retrieval questions · 18 September 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 45 + 30
Answer: 45 + 30 = 75 -
2. Algebra
Simplify: 7x + 3x
Answer: 10x -
3. Geometry
Opposite = 6cm, hypotenuse = 12cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
In ratio 4:3, the difference between shares is 25. What are the shares?
Answer: 100 and 75 -
5. Statistics
Find the mean of: 7, 5, 13, 16
Answer: 10.25