Keystones — Bedrock
Five GCSE retrieval questions · 20 August 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 13 + 29
Answer: 13 + 29 = 42 -
2. Algebra
Simplify: 8x + 8x
Answer: 16x -
3. Geometry
Opposite = 15cm, hypotenuse = 21.2cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify the ratio 20:16
Answer: 5:4 -
5. Statistics
Find the mean of: 17, 11, 11
Answer: 13