Keystones — Bedrock
Five GCSE retrieval questions · 4 October 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 99 + 84
Answer: 99 + 84 = 183 -
2. Algebra
Simplify: 9x + 9x
Answer: 18x -
3. Geometry
Opposite = 8cm, hypotenuse = 16cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify the ratio 6:14
Answer: 3:7 -
5. Statistics
Find the mean of: 2, 16, 20, 20
Answer: 14.5