Keystones — Bedrock
Five GCSE retrieval questions · 8 September 2025 · mathsvault.uk/keystones
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1. Number
Calculate: -9 + 1
Answer: -8 -
2. Algebra
Simplify: 4x + 3x
Answer: 7x -
3. Geometry
Find the area of a right triangle with base 11cm and height 6cm
Answer: 33cm² -
4. Ratio
Calculate 25% of 126
Answer: 31.5 -
5. Statistics
Find the mean of: 16, 8, 12, 20
Answer: 14