Keystones — Bedrock
Five GCSE retrieval questions · 20 March 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 17 + 33
Answer: 17 + 33 = 50 -
2. Algebra
Factorise: 20x + 12
Answer: 4(5x + 3) -
3. Geometry
Opposite = 13cm, hypotenuse = 26cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Calculate 50% of 168
Answer: 84 -
5. Statistics
Find the range of: 16, 31, 34, 21, 32
Answer: 18